I.

I (ī). 1. I, the ninth letter of the English alphabet, takes its form from the Phœnician, through the Latin and the Greek. The Phœnician letter was probably of Egyptian origin. Its original value was nearly the same as that of the Italian I, or long e as in mete. Etymologically I is most closely related to e, y, j, g; as in dint, dent, beverage, L. bibere; E. kin, AS. cynn; E. thin, AS. þynne; E. dominion, donjon, dungeon. In English I has two principal vowel sounds: the long sound, as in pīne, īce; and the short sound, as in p&ibreve;n. It has also three other sounds: (a) That of e in term, as in thirst. (b) That of e in mete (in words of foreign origin), as in machine, pique, regime. (c) That of consonant y (in many words in which it precedes another vowel), as in bunion, million, filial, Christian, etc. It enters into several digraphs, as in fail, field, seize, feign. friend; and with o often forms a proper diphtong, as in oil, join, coin.

See Guide to Pronunciation, §§ 98-106.

The dot which we place over the small or lower case i dates only from the 14th century. The sounds of I and J were originally represented by the same character, and even after the introduction of the form J into English dictionaries, words containing these letters were, till a comparatively recent time, classed together.

2. In our old authors, I was often used for ay (or aye), yes, which is pronounced nearly like it.

3. As a numeral, I stands for 1, II for 2, etc.

I- (?), prefix. See Y- .

I (ī), pron. [poss. My (mī) or Mine (mīn); object. Me (mē). pl. nom. We (wē); poss. Our (our) or Ours (ourz); object. Us (ŭs).] [OE. i, ich, ic, AS. ic; akin to OS. & D. ik, OHG. ih, G. ich, Icel. ek, Dan. jeg, Sw. jag, Goth. ik, OSlav. az', Russ. ia, W. i, L. ego, Gr. 'egw`, 'egw`n, Skr. aham. √179. Cf. Egoism.] The nominative case of the pronoun of the first person; the word with which a speaker or writer denotes himself.

I*am`a*tol"o*gy (?), n. [Gr. &?;, &?;, medicine + -logy.] (Med.) Materia Medica; that branch of therapeutics which treats of remedies.

I"amb (?), n. [Cf. F. iambe. See Lambus.] An iambus or iambic. [R.]

I*am"bic (?), a. [L. iambicus, Gr. &?;: cf. F. iambique.] 1. (Pros.) Consisting of a short syllable followed by a long one, or of an unaccented syllable followed by an accented; as, an iambic foot.

2. Pertaining to, or composed of, iambics; as, an iambic verse; iambic meter. See Lambus.

I*am"bic, n. 1. (Pros.) (a) An iambic foot; an iambus. (b) A verse composed of iambic feet.

&fist; The following couplet consists of iambic verses.

Thy gen- | ius calls | thee not | to pur- | chase fame
In keen | iam- | bics, but | mild an- | agram.

Dryden.

2. A satirical poem (such poems having been anciently written in iambic verse); a satire; a lampoon.

I*am"bic*al (?), a. Iambic. [Obs. or R.]

I*am"bic*al*ly, adv. In a iambic manner; after the manner of iambics.

I*am"bize (?), v. t. [Gr. &?;.] To satirize in iambics; to lampoon. [R.]

I*am"bus (?), n.; pl. L. Iambi (#), E. Iambuses (#). [L. iambus, Gr. &?;; prob. akin to &?; to throw, assail (the iambus being first used in satiric poetry), and to L. jacere to throw. Cf. Jet a shooting forth.] (Pros.) A foot consisting of a short syllable followed by a long one, as in ămāns, or of an unaccented syllable followed by an accented one, as invent; an iambic. See the Couplet under Iambic, n.

||I*an"thi*na (?), n.; pl. L. Ianthinæ (#), E. Ianthinas (#). [NL., fr. L. ianthinus violet-blue, Gr. &?;; &?; violet + &?; flower.] (Zoöl.) Any gastropod of the genus Ianthina, of which various species are found living in mid ocean; -- called also purple shell, and violet snail. [Written also janthina.]

&fist; It floats at the surface by means of a raft, which it constructs by forming and uniting together air bubbles of hardened mucus. The Tyrian purple of the ancients was obtained in part from mollusks of this genus.

I*a`tra*lip"tic (?), a. [Gr. &?;; &?; physician + &?; belonging to the &?; or anointer, fr. &?; to anoint: cf. F. iatraliptique.] Treating diseases by anointing and friction; as, the iatraliptic method. [Written also iatroleptic.]

{ I*at"ric (?), I*at"ric*al (?), } a. [Gr. &?; healing, fr. &?; physician, fr. &?; to heal.] Of or pertaining to medicine, or to medical men.

I*a`tro*chem"ic*al (?), a. Of or pertaining to iatrochemistry, or to the iatrochemists.

I*a`tro*chem"ist (?), n. [Gr. &?; physician + E. chemist.] A physician who explained or treated diseases upon chemical principles; one who practiced iatrochemistry.

I*a`tro*chem"is*try (?), n. Chemistry applied to, or used in, medicine; -- used especially with reference to the doctrines in the school of physicians in Flanders, in the 17th century, who held that health depends upon the proper chemical relations of the fluids of the body, and who endeavored to explain the conditions of health or disease by chemical principles.

I*a`tro*math`e*mat"ic*al (?), a. Of or pertaining to iatromathematicians or their doctrine.

I*a`tro*math`e*ma*ti"cian (?), n. [Gr. &?; physician + E. mathematician.] (Hist. Med.) One of a school of physicians in Italy, about the middle of the 17th century, who tried to apply the laws of mechanics and mathematics to the human body, and hence were eager student of anatomy; -- opposed to the iatrochemists.

I*be"ri*an (?), a. Of or pertaining to Iberia.

I"bex (ī"b&ebreve;ks), n.; pl. E. Ibexes (-&ebreve;z), L. Ibices (īb"&ibreve;*sēz). [L., a kind of goat, the chamois.] (Zoöl.) One of several species of wild goats having very large, recurved horns, transversely ridged in front; -- called also steinbok.

&fist; The Alpine ibex (Capra ibex) is the best known. The Spanish, or Pyrenean, ibex (C. Hispanica) has smoother and more spreading horns.

||I*bi"dem (?), adv. [L.] In the same place; -- abbreviated ibid. or ib.

I"bis (?), n. [L. ibis, Gr. &?;; of Egyptian origin.] (Zoöl.) Any bird of the genus Ibis and several allied genera, of the family Ibidæ, inhabiting both the Old World and the New. Numerous species are known. They are large, wading birds, having a long, curved beak, and feed largely on reptiles.

&fist; The sacred ibis of the ancient Egyptians (Ibis Æthiopica) has the head and neck black, without feathers. The plumage of the body and wings is white, except the tertiaries, which are lengthened and form a dark purple plume. In ancient times this bird was extensively domesticated in Egypt, but it is now seldom seen so far north. The glossy ibis (Plegadis autumnalis), which is widely distributed both in the Old World and the New, has the head and neck feathered, except between the eyes and bill; the scarlet ibis (Guara rubra) and the white ibis (G. alba) inhabit the West Indies and South America, and are rarely found in the United States. The wood ibis (Tantalus loculator) of America belongs to the Stork family (Ciconidæ). See Wood ibis.

-i*ble (?). See -able.

-ic (?). [L. -icus, Gr. &?;: cf. F. -ique.] 1. A suffix signifying, in general, relating to, or characteristic of; as, historic, hygienic, telegraphic, etc.

2. (Chem.) A suffix, denoting that the element indicated enters into certain compounds with its highest valence, or with a valence relatively higher than in compounds where the name of the element ends in -ous; as, ferric, sulphuric. It is also used in the general sense of pertaining to; as, hydric, sodic, calcic.

I*ca"ri*an (?), a. [L. Icarius, Gr. &?;, fr. &?;, the mythic son of Dædalus, who, when flying from Crete on wings cemented with wax, mounted so high that the sun melted the wax, and he fell into the sea.] Soaring too high for safety, like Icarus; adventurous in flight.

Ice (īs), n. [OE. is, iis, AS. īs; aksin to D. ijs, G. eis, OHG. īs, Icel. īss, Sw. is, Dan. iis, and perh. to E. iron.] 1. Water or other fluid frozen or reduced to the solid state by cold; frozen water. It is a white or transparent colorless substance, crystalline, brittle, and viscoidal. Its specific gravity (0.92, that of water at 4° C. being 1.0) being less than that of water, ice floats.

&fist; Water freezes at 32° F. or 0° Cent., and ice melts at the same temperature. Ice owes its cooling properties to the large amount of heat required to melt it.

2. Concreted sugar. Johnson.

3. Water, cream, custard, etc., sweetened, flavored, and artificially frozen.

4. Any substance having the appearance of ice; as, camphor ice.

Anchor ice, ice which sometimes forms about stones and other objects at the bottom of running or other water, and is thus attached or anchored to the ground. -- Bay ice, ice formed in bays, fiords, etc., often in extensive fields which drift out to sea. -- Ground ice, anchor ice. -- Ice age (Geol.), the glacial epoch or period. See under Glacial. -- Ice anchor (Naut.), a grapnel for mooring a vessel to a field of ice. Kane. -- Ice blink [Dan. iisblink], a streak of whiteness of the horizon, caused by the reflection of light from ice not yet in sight. -- Ice boat. (a) A boat fitted with skates or runners, and propelled on ice by sails; an ice yacht. (b) A strong steamboat for breaking a channel through ice. -- Ice box or chest, a box for holding ice; a box in which things are kept cool by means of ice; a refrigerator. -- Ice brook, a brook or stream as cold as ice. [Poetic] Shak. -- Ice cream [for iced cream], cream, milk, or custard, sweetened, flavored, and frozen. -- Ice field, an extensive sheet of ice. -- Ice float, Ice floe, a sheet of floating ice similar to an ice field, but smaller. -- Ice foot, shore ice in Arctic regions; an ice belt. Kane. -- Ice house, a close-covered pit or building for storing ice. -- Ice machine (Physics), a machine for making ice artificially, as by the production of a low temperature through the sudden expansion of a gas or vapor, or the rapid evaporation of a volatile liquid. -- Ice master. See Ice pilot (below). -- Ice pack, an irregular mass of broken and drifting ice. -- Ice paper, a transparent film of gelatin for copying or reproducing; papier glacé. -- Ice petrel (Zoöl.), a shearwater (Puffinus gelidus) of the Antarctic seas, abundant among floating ice. -- Ice pick, a sharp instrument for breaking ice into small pieces. -- Ice pilot, a pilot who has charge of a vessel where the course is obstructed by ice, as in polar seas; -- called also ice master. -- Ice pitcher, a pitcher adapted for ice water. -- Ice plow, a large tool for grooving and cutting ice. -- Ice sludge, bay ice broken small by the wind or waves; sludge. -- Ice spar (Min.), a variety of feldspar, the crystals of which are very clear like ice; rhyacolite. -- Ice tongs, large iron nippers for handling ice. -- Ice water. (a) Water cooled by ice. (b) Water formed by the melting of ice. -- Ice yacht. See Ice boat (above). -- To break the ice. See under Break. -- Water ice, a confection consisting of water sweetened, flavored, and frozen.

Ice (īs), v. t. [imp. & p. p. Iced (īst); p. pr. & vb. n. Icing (ī"s&ibreve;ng).] 1. To cover with ice; to convert into ice, or into something resembling ice.

2. To cover with icing, or frosting made of sugar and milk or white of egg; to frost, as cakes, tarts, etc.

3. To chill or cool, as with ice; to freeze.

Ice"berg` (?), n. [Prob. of Scand. origin; cf. Dan. iisbierg, Sw. isberg, properly, a mountain of ice. See Ice, and Berg.] A large mass of ice, generally floating in the ocean.

&fist; Icebergs are large detached portions of glaciers, which in cold regions often project into the sea.

Ice"bird` (?), n. (Zoöl.) An Arctic sea bird, as the Arctic fulmar.

Ice"bound` (?), a. Totally surrounded with ice, so as to be incapable of advancing; as, an icebound vessel; also, surrounded by or fringed with ice so as to hinder easy access; as, an icebound coast.

Ice"-built` (?), a. 1. Composed of ice.

2. Loaded with ice. "Ice-built mountains." Gray.

Iced (?), a. 1. Covered with ice; chilled with ice; as, iced water.

2. Covered with something resembling ice, as sugar icing; frosted; as, iced cake.

Iced cream. Same as Ice cream, under Ice.

Ice"fall` (?), n. A frozen waterfall, or mass of ice resembling a frozen waterfall. Coleridge.

Ice"land*er (?), n. A native, or one of the Scandinavian people, of Iceland.

Ice*lan"dic (?), a. Of or pertaining to Iceland; relating to, or resembling, the Icelanders.

Ice*lan"dic (?), n. The language of the Icelanders. It is one of the Scandinavian group, and is more nearly allied to the Old Norse than any other language now spoken.

Ice"land moss` (?). (Bot.) A kind of lichen (Cetraria Icelandica) found from the Arctic regions to the North Temperate zone. It furnishes a nutritious jelly and other forms of food, and is used in pulmonary complaints as a demulcent.

Ice"land spar` (?). (Min.) A transparent variety of calcite, the best of which is obtained in Iceland. It is used for the prisms of the polariscope, because of its strong double refraction. Cf. Calcite.

Ice"man (?), n.; pl. Icemen (&?;). 1. A man who is skilled in traveling upon ice, as among glaciers.

2. One who deals in ice; one who retails or delivers ice.

Ice" plant` (?). (Bot.) A plant (Mesembryanthemum crystallinum), sprinkled with pellucid, watery vesicles, which glisten like ice. It is native along the Mediterranean, in the Canaries, and in South Africa. Its juice is said to be demulcent and diuretic; its ashes are used in Spain in making glass.

Ice-skater = one who skates on ice wearing an ice skate; esp. an athlete who performs athletic or artistic movements on a sheet of ice, wearing ice skates; including speed skater and figure skater -- >

Ice"quake` (īs"kwāk`), n. The crash or concussion attending the breaking up of masses of ice, -- often due to contraction from extreme cold.

Ich (&ibreve;k), pron. I. [Obs.] Chaucer.

&fist; In the Southern dialect of Early English this is the regular form. Cf. Ik.

Ich*neu"mon (?), n. [L., fr. Gr. &?;, lit., the tracker; so called because it hunts out the eggs of the crocodile, fr. &?; to track or hunt after, fr. 'i`chnos track, footstep.] 1. (Zoöl.) Any carnivorous mammal of the genus Herpestes, and family Viverridæ. Numerous species are found in Asia and Africa. The Egyptian species (H. ichneumon), which ranges to Spain and Palestine, is noted for destroying the eggs and young of the crocodile as well as various snakes and lizards, and hence was considered sacred by the ancient Egyptians. The common species of India (H. griseus), known as the mongoose, has similar habits and is often domesticated. It is noted for killing the cobra.

2. (Zoöl.) Any hymenopterous insect of the family Ichneumonidæ, of which several thousand species are known, belonging to numerous genera.

&fist; The female deposits her eggs upon, or in, the bodies of other insects, such as caterpillars, plant lice, etc. The larva lives upon the internal tissues of the insect in which it is parasitic, and finally kills it. Hence, many of the species are beneficial to agriculture by destroying noxious insects.

Ichneumon fly. See Ichneumon, 2.

Ich`neu*mon"i*dan (?), a. (Zoöl.) Of or pertaining to the Ichneumonidæ, or ichneumon flies. -- n. One of the Ichneumonidæ.

||Ich`neu*mon"i*des (?), n. pl. [NL. See Ichneumon.] (Zoöl.) The ichneumon flies.

Ich"nite (?), n. [Gr. 'i`chnos track, footstep.] A fossil footprint; as, the ichnites in the Triassic sandstone. Page.

{ Ich`no*graph"ic (?), Ich`no*graph"ic*al (?), } a. [Cf. F. ichonographique.] Of or pertaining to ichonography; describing a ground plot.

Ich*nog"ra*phy (?), n. [Gr. &?;; 'i`chnos track, footstep + &?; to describe: cf. F. ichonographie.] (Drawing) A horizontal section of a building or other object, showing its true dimensions according to a geometric scale; a ground plan; a map; also, the art of making such plans.

Ich"no*lite (?), n. [Gr. 'i`chnos track, footstep + -lite.] A fossil footprint; an ichnite.

Ich`no*li*thol"o*gy (?), n. [Gr. 'i`chnos footstep + -lith + -logy.] Same as Ichnology. Hitchcock.

Ich`no*log"ic*al (?), a. Of or pertaining to ichnology.

Ich*nol"o*gy (?), n. [Gr. 'i`chnos a footstep + -logy.] (Geol.) The branch of science which treats of fossil footprints.

Ich*nos"co*py (?), n. [Gr. 'i`chnos footstep + -scopy.] The search for the traces of anything. [R.]

I"chor (?), n. [NL., fr. Gr. &?;: cf. F. ichor.] 1. (Class. Myth.) An ethereal fluid that supplied the place of blood in the veins of the gods.

2. A thin, acrid, watery discharge from an ulcer, wound, etc.

||I`chor*hæ"mi*a (?), n. [NL., fr. Gr. &?; ichor + &?; blood.] (Med.) Infection of the blood with ichorous or putrid substances.

I"chor*ous (?), a. [Cf. F. ichoreux.] Of or like ichor; thin; watery; serous; sanious.

Ich"thi*din (?), n. (Physiol. Chem.) A substance from the egg yolk of osseous fishes.

Ich"thin (?), n. [Gr. 'ichqy`s fish.] (Physiol. Chem.) A nitrogenous substance resembling vitellin, present in the egg yolk of cartilaginous fishes.

Ich"thu*lin (?), n. (Physiol. Chem.) A substance from the yolk of salmon's eggs.

Ich"thus (?), n. [Gr. 'ichqy`s.] In early Christian and eccesiastical art, an emblematic fish, or the Greek word for fish, which combined the initials of the Greek words Ihsoy^s, Christo`s, Qeoy^ Gio`s Swth`r, Jesus, Christ, Son of God, Savior.

Ich"thy*ic (?), a. [Gr. 'ichqy`s, -y`os, a fish.] (Zoöl.) Like, or pertaining to, fishes.

{ Ich"thy*o*col (?), Ich`thy*o*col"la (?), } n. [L. ichthyocolla, Gr. &?;; 'ichqy`s, -y`os, a fish + &?; glue: cf. F. ichthyocolle.] Fish glue; isinglass; a glue prepared from the sounds of certain fishes.

Ich`thy*o*cop"ro*lite (?), n. [Gr. 'ichqy`s, -y`os, a fish + E. coprolite.] (Geol.) Fossil dung of fishes.

Ich`thy*o*dor"u*lite (?), n. [Gr. 'ichqy`s, -y`os, a fish + &?; a spear + - lite.] (Zoöl.) One of the spiny plates found on the back and tail of certain skates.

Ich`thy*og"ra*phy (?), n. [Gr. 'ichqy`s, -y`os + graphy: cf. F. ichthyographie.] A treatise on fishes.

{ Ich"thy*oid (?), Ich`thy*oid"al (?), } a. [Gr. &?;: 'ichqy`s, -y`os, a fish + &?; form.] (Zoöl.) Somewhat like a fish; having some of the characteristics of fishes; -- said of some amphibians.

Ich`thy*ol"a*try (?), n. [Gr. 'ichqy`s, -y`os, a fish + &?; to worship.] Worship of fishes, or of fish-shaped idols. Layard.

Ich"thy*o*lite (?), n. [Gr. 'ichqy`s, -y`os, a fish + -lite.] (Paleon.) A fossil fish, or fragment of a fish.

{ Ich`thy*o*log"ic (?), Ich`thy*o*log"ic*al (?), } a. [Cf. F. ichthyologique.] Of or pertaining to ichthyology.

Ich`thy*ol"o*gist (?), n. [Cf. F. ichthyologiste.] One versed in, or who studies, ichthyology.

Ich`thy*ol"o*gy (?), n. [Gr. 'ichqy`s, -y`os, a fish + -logy: cf. F. ichthyologie.] The natural history of fishes; that branch of zoölogy which relates to fishes, including their structure, classification, and habits.

Ich"thy*o*man`cy (?), n. [Gr. 'ichqy`s, -y`os, a fish + -mancy: cf. F. ichthyomancie.] Divination by the heads or the entrails of fishes.

||Ich`thy*o*mor"pha (?), n. pl. [NL., fr. Gr. &?; fish-shaped; 'ichqy`s, -y`os, a fish + &?; form.] (Zoöl.) The Urodela.

{ Ich`thy*o*mor"phic (?), Ich`thy*o*mor"phous (?), } a. [See Ichthyomorpha.] Fish- shaped; as, the ichthyomorphic idols of ancient Assyria.

Ich`thy*oph"a*gist (?), n. [See Ichthyophagous.] One who eats, or subsists on, fish.

Ich`thy*oph"a*gous (?), a. [L. ichthyophagus, Gr. &?;; 'ichqy`s, -y`os, a fish + &?; to eat.] Eating, or subsisting on, fish.

Ich`thy*oph"a*gy (?), n. [Gr. 'ichqyofagi`a: cf. F. ichthyophagie.] The practice of eating, or living upon, fish.

Ich`thy*oph*thal"mite (?), n. [Gr. 'ichqy`s, -y`os, a fish + &?; eye.] See Apophyllite. [R.]

||Ich`thy*oph*thi"ra (?), n. pl. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + &?; a louse.] (Zoöl.) A division of copepod crustaceans, including numerous species parasitic on fishes.

||Ich`thy*op"si*da (?), n. pl. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + &?; appearance.] (Zoöl.) A grand division of the Vertebrata, including the Amphibia and Fishes.

||Ich`thy*op`te*ryg"i*a (?), n. pl. [NL. See Ichthyopterygium.] (Paleon.) See Ichthyosauria.

||Ich`thy*op`te*ryg"i*um (?), n. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + &?; a fin.] (Anat.) The typical limb, or lateral fin, of fishes.

||Ich`thy*or"nis (?), n. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + &?; bird.] (Paleon.) An extinct genus of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave vertebræ, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormæ.

Ich"thy*o*saur (?), n. [Cf. F. ichthyosaure.] (Paleon.) One of the Ichthyosaura.

||Ich`thy*o*sau"ri*a (?), n. pl. [NL. See Ichthyosaurus.] (Paleon.) An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period.

Ich`thy*o*sau"ri*an (?), a. (Paleon.) Of or pertaining to the Ichthyosauria. -- n. One of the Ichthyosauria.

||Ich`thy*o*sau"rus (?), n.; pl. Ichthyosauri (#). [NL., fr. Gr. 'ichqy`s, -y`os, a fish + say^ros a lizard.] (Paleon.) An extinct genus of marine reptiles; - - so named from their short, biconcave vertebræ, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oölitic, and Cretaceous formations.

||Ich`thy*o"sis (?), n. [NL., fr. Gr. 'ichqy`s fish.] (Med.) A disease in which the skin is thick, rough, and scaly; -- called also fishskin. -- Ich`thy*ot"ic (#), a.

Ich`thy*ot"o*mist (?), n. One skilled in ichthyotomy.

Ich`thy*ot"o*my (?), n. [Gr. 'ichqy`s, -y`os, a fish + &?; to cut.] The anatomy or dissection of fishes. [R.]

||Ich"thys (?), n. [NL., fr. Gr. 'ichqy`s a fish.] Same as Ichthus.

I"ci*cle (?), n. [OE. isikel, AS. īsgicel; īs ice + gicel icicle; akin to Icel. jökull; cf. Gael. eigh ice, Ir. aigh.] A pendent, and usually conical, mass of ice, formed by freezing of dripping water; as, the icicles on the eaves of a house.

I"ci*cled (?), a. Having icicles attached.

I"ci*ly (?), adv. In an icy manner; coldly.

Faultily faultless, icily regular, splendidly null,
Dead perfection, no more.

Tennyson.

I"ci*ness (?), n. The state or quality of being icy or very cold; frigidity.

I"cing (?), n. A coating or covering resembling ice, as of sugar and milk or white of egg; frosting.

Ic"kle (?), n. [OE. ikil. See Icicle.] An icicle. [Prov. Eng.]

I"con (ī"k&obreve;n), n. [L., fr. Gr. e'ikw`n.] An image or representation; a portrait or pretended portrait.

Netherlands whose names and icons are published.

Hakewill.

I*con"ic*al (?), a. Pertaining to, or consisting of, images, pictures, or representations of any kind.

I"con*ism (?), n. [L. iconismus, Gr. &?;, fr. &?; to mold, delineate, fr. e'ikw`n an image: cf. F. iconisme.] The formation of a figure, representation, or semblance; a delineation or description.

Some kind of apish imitations, counterfeit iconisms.

Cudworth.

I"con*ize (?), v. t. [Gr. e'ikoni`zein.] To form an image or likeness of. [R.] Cudworth.

I*con"o*clasm (?), n. [Cf. F. iconoclasme. See Iconoclast.] The doctrine or practice of the iconoclasts; image breaking.

I*con"o*clast (?), n. [Gr. e'ikw`n image + &?; to break: cf. F. iconoclaste.] 1. A breaker or destroyer of images or idols; a determined enemy of idol worship.

2. One who exposes or destroys impositions or shams; one who attacks cherished beliefs; a radical.

I*con`o*clas"tic (?), a. Of or pertaining to the iconoclasts, or to image breaking. Milman.

{I*con"o*dule (?), I*con"o*du`list (?), } n. [Gr. e'ikw`n an image + &?; a slave.] (Eccl. Hist.) One who serves images; -- opposed to an iconoclast. Schaff-Herzog Encyc.

I`co*nog"ra*pher (?), n. A maker of images. Fairholt.

I*con`o*graph"ic (?), a. 1. Of or pertaining to iconography.

2. Representing by means of pictures or diagrams; as, an icongraphic encyclopædia.

I`co*nog"ra*phy (?), n. [Gr. &?; a sketch or description; e'ikw`n an image + &?; to describe: cf. F. iconographie.] 1. The art or representation by pictures or images; the description or study of portraiture or representation, as of persons; as, the iconography of the ancients.

2. The study of representative art in general.

Christian iconography, the study of the representations in art of the Deity, the persons of the Trinity, angels, saints, virtues, vices, etc.

I`co*nol"a*ter (?), n. [Gr. e'ikw`n an image + &?; to worship: cf. F. iconolâtre.] One who worships images.

I`co*nol"a*try (?), n. [See Iconolater.] The worship of images as symbols; -- distinguished from idolatry, the worship of images themselves.

I`co*nol"o*gy (?), n. [Gr. &?;; e'ikw`n an image + &?; discourse: cf. F. iconologie.] The discussion or description of portraiture or of representative images. Cf. Iconography.

I`co*nom"a*chy (?), n. [Gr. &?; a war against images; e'ikw`n an image + &?; fight.] Hostility to images as objects of worship. [R.]

I`co*nom"ic*al (?), a. [Gr. &?;; e'ikw`n image + &?; fight.] Opposed to pictures or images as objects of worship. [R.] Sir T. Browne.

I`co*noph"i*list (?), n. [Gr. e'ikw`n an image + &?; to love.] A student, or lover of the study, of iconography.

I`co*sa*he"dral (?), a. [See Icosahedron.] (Geom.) Having twenty equal sides or faces.

I`co*sa*he"dron (?), n. [Gr. &?;; &?; twenty + &?; seat, base, fr. &?; to sit.] (Geom.) A solid bounded by twenty sides or faces.

Regular icosahedron, one of the five regular polyhedrons, bounded by twenty equilateral triangules. Five triangles meet to form each solid angle of the polyhedron.

||I`co*san"dri*a (?), n. pl. [NL., fr. Gr. &?; twenty +&?;, &?;, man, male: cf. F. icosandrie.] (Bot.) A Linnæan class of plants, having twenty or more stamens inserted in the calyx.

{ I`co*san"dri*an (?), I`co*san"drous (?), } a. (Bot.) Pertaining to the class Icosandria; having twenty or more stamens inserted in the calyx.

I`co*si*tet`ra*he"dron (?), n. [Gr. &?; twenty + &?;, combining form of &?; four + &?; seat, base.] (Crystallog.) A twenty-four-sided solid; a tetragonal trisoctahedron or trapezohedron.

-ics (?). A suffix used in forming the names of certain sciences, systems, etc., as acoustics, mathematics, dynamics, statistics, politics, athletics.

&fist; The names sciences ending in ics, as mathematics, mechanics, metaphysics, optics, etc., are, with respect to their form, nouns in the plural number. The plural form was probably introduced to mark the complex nature of such sciences; and it may have been in imitation of the use of the Greek plurals &?;, &?;, &?;, &?;, etc., to designate parts of Aristotle's writings. Previously to the present century, nouns ending in ics were construed with a verb or a pronoun in the plural; but it is now generally considered preferable to treat them as singular. In Greman we have die Mathematik, die Mechanik, etc., and in French la metaphysique, la optique, etc., corresponding to our mathematics, mechanics, metaphysics, optics, etc.

Mathematics have for their object the consideration of whatever is capable of being numbered or measured.

John Davidson.

The citations subjoined will serve as examples of the best present usage.

Ethics is the sciences of the laws which govern our actions as moral agents.

Sir W. Hamilton.

All parts of knowledge have their origin in metaphysics, and finally, perhaps, revolve into it.

De Quincey.

Mechanics, like pure mathematics, may be geometrical, or may be analytical; that is, it may treat space either by a direct consideration of its properties, or by a symbolical representation.

Whewell.

Ic*ter"ic (?), n. A remedy for the jaundice.

{ Ic*ter"ic (?), Ic*ter"ic*al (?), } a. [L. ictericus, Gr. &?;, fr. &?; jaundice: cf. F. ictérique.] 1. Pertaining to, or affected with, jaundice.

2. Good against the jaundice. Johnson.

{ Ic`ter*i"tious (?), Ic*ter"i*tous (?), } a. Yellow; of the color of the skin when it is affected by the jaundice.

Ic"ter*oid (?), a. [Gr. &?; jaundice + -oid.] Of a tint resembling that produced by jaundice; yellow; as, an icteroid tint or complexion.

||Ic"te*rus (?), n. [NL. See Icteric, a.] (Med.) The jaundice.

Ic"tic (?), a. [L. ictus blow.] Pertaining to, or caused by, a blow; sudden; abrupt. [R.] H. Bushnell.

||Ic"tus (?), n. [L., fr. icere, ictum, to strike.] 1. (Pros.) The stress of voice laid upon accented syllable of a word. Cf. Arsis.

2. (Med.) A stroke or blow, as in a sunstroke, the sting of an insect, pulsation of an artery, etc.

I"cy (?), a. [Compar. Icier (?); superl. Iciest.] [AS. īsig. See Ice.] 1. Pertaining to, resembling, or abounding in, ice; cold; frosty. "Icy chains." Shak. "Icy region." Boyle. "Icy seas." Pope.

2. Characterized by coldness, as of manner, influence, etc.; chilling; frigid; cold.

Icy was the deportment with which Philip received these demonstrations of affection.

Motley.

I"cy-pearl`ed (?), a. Spangled with ice.

Mounting up in icy-pearled car.

Milton.

I'd (?). A contraction from I would or I had.

Id (?), n. (Zoöl.) A small fresh-water cyprinoid fish (Leuciscus idus or Idus idus) of Europe. A domesticated variety, colored like the goldfish, is called orfe in Germany.

I*da"li*an (?), a. Of or pertaining to Idalium, a mountain city in Cyprus, or to Venus, to whom it was sacred. "Idalian Aphrodité." Tennyson.

Ide (?), n. (Zoöl.) Same as Id.

-ide (?). (Chem.) A suffix used to denote: (a) The nonmetallic, or negative, element or radical in a binary compound; as, oxide, sulphide, chloride. (b) A compound which is an anhydride; as, glycolide, phthalide. (c) Any one of a series of derivatives; as, indogenide, glucoside, etc.

I*de"a (?), n.; pl. Ideas (#). [L. idea, Gr. &?;, fr. &?; to see; akin to E. wit: cf. F. idée. See Wit.] 1. The transcript, image, or picture of a visible object, that is formed by the mind; also, a similar image of any object whatever, whether sensible or spiritual.

Her sweet idea wandered through his thoughts.

Fairfax.

Being the right idea of your father
Both in your form and nobleness of mind.

Shak.

This representation or likeness of the object being transmitted from thence [the senses] to the imagination, and lodged there for the view and observation of the pure intellect, is aptly and properly called its idea.

P. Browne.

2. A general notion, or a conception formed by generalization.

Alice had not the slightest idea what latitude was.

L. Caroll.

3. Hence: Any object apprehended, conceived, or thought of, by the mind; a notion, conception, or thought; the real object that is conceived or thought of.

Whatsoever the mind perceives in itself, or as the immediate object of perception, thought, or undersanding, that I call idea.

Locke.

4. A belief, option, or doctrine; a characteristic or controlling principle; as, an essential idea; the idea of development.

That fellow seems to me to possess but one idea, and that is a wrong one.

Johnson.

What is now "idea" for us? How infinite the fall of this word, since the time where Milton sang of the Creator contemplating his newly-created world, -
"how it showed . . .
Answering his great idea," -
to its present use, when this person "has an idea that the train has started," and the other "had no idea that the dinner would be so bad!"

Trench.

5. A plan or purpose of action; intention; design.

I shortly afterwards set off for that capital, with an idea of undertaking while there the translation of the work.

W. Irving.

6. A rational conception; the complete conception of an object when thought of in all its essential elements or constituents; the necessary metaphysical or constituent attributes and relations, when conceived in the abstract.

7. A fiction object or picture created by the imagination; the same when proposed as a pattern to be copied, or a standard to be reached; one of the archetypes or patterns of created things, conceived by the Platonists to have excited objectively from eternity in the mind of the Deity.

Thence to behold this new-created world,
The addition of his empire, how it showed
In prospect from his throne, how good, how fair,
Answering his great idea.

Milton.

&fist; "In England, Locke may be said to have been the first who naturalized the term in its Cartesian universality. When, in common language, employed by Milton and Dryden, after Descartes, as before him by Sidney, Spenser, Shakespeare, Hooker, etc., the meaning is Platonic." Sir W. Hamilton.

Abstract idea, Association of ideas, etc. See under Abstract, Association, etc.

Syn. -- Notion; conception; thought; sentiment; fancy; image; perception; impression; opinion; belief; observation; judgment; consideration; view; design; intention; purpose; plan; model; pattern. There is scarcely any other word which is subjected to such abusive treatment as is the word idea, in the very general and indiscriminative way in which it is employed, as it is used variously to signify almost any act, state, or content of thought.

I*de"al (?), a. [L. idealis: cf. F. idéal.] 1. Existing in idea or thought; conceptional; intellectual; mental; as, ideal knowledge.

2. Reaching an imaginary standard of excellence; fit for a model; faultless; as, ideal beauty. Byron.

There will always be a wide interval between practical and ideal excellence.

Rambler.

3. Existing in fancy or imagination only; visionary; unreal. "Planning ideal common wealth." Southey.

4. Teaching the doctrine of idealism; as, the ideal theory or philosophy.

5. (Math.) Imaginary.

Syn. -- Intellectual; mental; visionary; fanciful; imaginary; unreal; impracticable; utopian.

I*de"al (?), n. A mental conception regarded as a standard of perfection; a model of excellence, beauty, etc.

The ideal is to be attained by selecting and assembling in one whole the beauties and perfections which are usually seen in different individuals, excluding everything defective or unseemly, so as to form a type or model of the species. Thus, the Apollo Belvedere is the ideal of the beauty and proportion of the human frame.

Fleming.

Beau ideal. See Beau ideal.

I*de"a*less (?), a. Destitute of an idea.

I*de"al*ism (?), n. [Cf. F. idéalisme.] 1. The quality or state of being ideal.

2. Conception of the ideal; imagery.

3. (Philos.) The system or theory that denies the existence of material bodies, and teaches that we have no rational grounds to believe in the reality of anything but ideas and their relations.

I*de"al*ist, n. [Cf. F. idéaliste.] 1. One who idealizes; one who forms picturesque fancies; one given to romantic expectations.

2. One who holds the doctrine of idealism.

I*de`al*is"tic (?), a. Of or pertaining to idealists or their theories.

I`de*al"i*ty (?), n.; pl. Idealities (&?;). 1. The quality or state of being ideal.

2. The capacity to form ideals of beauty or perfection.

3. (Phren.) The conceptive faculty.

I*de`al*i*za"tion (?), n. 1. The act or process of idealizing.

2. (Fine Arts) The representation of natural objects, scenes, etc., in such a way as to show their most important characteristics; the study of the ideal.

I*de"al*ize (?), v. t. [imp. & p. p. Idealized (?); p. pr. & vb. n. Idealizing (?).] 1. To make ideal; to give an ideal form or value to; to attribute ideal characteristics and excellences to; as, to idealize real life.

2. (Fine Arts) To treat in an ideal manner. See Idealization, 2.

I*de"al*ize, v. i. [Cf. F. idéaliser.] To form ideals.

I*de"al*i`zer (?), n. An idealist.

I*de"al*ly, adv. In an ideal manner; by means of ideals; mentally.

I*de`a*log"ic (?), a. Of or pertaining to an idealogue, or to idealization.

I*de"a*logue (?), n. [Idea + -logue, as in theologue: cf. F. idéologue.] One given to fanciful ideas or theories; a theorist; a spectator. [R.] Mrs. Browning.

{ I*de"at (?), I*de"ate (?), } n. [LL. ideatum. See Idea.] (Metaph.) The actual existence supposed to correspond with an idea; the correlate in real existence to the idea as a thought or existence.

I*de"ate (?), v. t. 1. To form in idea; to fancy. [R.]

The ideated man . . . as he stood in the intellect of God.

Sir T. Browne.

2. To apprehend in thought so as to fix and hold in the mind; to memorize. [R.]

I`de*a"tion (?), n. The faculty or capacity of the mind for forming ideas; the exercise of this capacity; the act of the mind by which objects of sense are apprehended and retained as objects of thought.

The whole mass of residua which have been accumulated . . . all enter now into the process of ideation.

J. D. Morell.

I`de*a"tion*al (?), a. Pertaining to, or characterized by, ideation.

Certain sensational or ideational stimuli.

Blackw. Mag.

I"dem (?), pron. or adj. [L.] The same; the same as above; -- often abbreviated id.

I*den"tic (?), a. Identical. [Obs.] Hudibras.

I*den"tic*al (?), a. [Cf. F. identique. See Identity.] 1. The same; the selfsame; the very same; not different; as, the identical person or thing.

I can not remember a thing that happened a year ago, without a conviction . . . that I, the same identical person who now remember that event, did then exist.

Reid.

2. Uttering sameness or the same truth; expressing in the predicate what is given, or obviously implied, in the subject; tautological.

When you say body is solid, I say that you make an identical proposition, because it is impossible to have the idea of body without that of solidity.

Fleming.

Identical equation (Alg.), an equation which is true for all values of the algebraic symbols which enter into it.

I*den"tic*al*ly, adv. In an identical manner; with respect to identity. "Identically the same." Bp. Warburton. "Identically different." Ross.

I*den"tic*al*ness, n. The quality or state of being identical; sameness.

I*den"ti*fi`a*ble (?), a. Capable of being identified.

I*den`ti*fi*ca"tion (?), n. [Cf. F. identification.] The act of identifying, or proving to be the same; also, the state of being identified.

I*den"ti*fy (?), v. t. [imp. & p. p. Identified (?); p. pr. & vb. n. Identifying (?).] [Cf. F. identifier. See Identity, and -fy.] 1. To make to be the same; to unite or combine in such a manner as to make one; to treat as being one or having the same purpose or effect; to consider as the same in any relation.

Every precaution is taken to identify the interests of the people and of the rulers.

D. Ramsay.

Let us identify, let us incorporate ourselves with the people.

Burke.

2. To establish the identity of; to prove to be the same with something described, claimed, or asserted; as, to identify stolen property.

I*den"ti*fy (?), v. i. To become the same; to coalesce in interest, purpose, use, effect, etc. [Obs. or R.]

An enlightened self-interest, which, when well understood, they tell us will identify with an interest more enlarged and public.

Burke.

I*den"tism (?), n. [See Identity.] (Metaph.) The doctrine taught by Schelling, that matter and mind, and subject and object, are identical in the Absolute; -- called also the system or doctrine of identity.

I*den"ti*ty (?), n.; pl. Identities (#). [F. identité, LL. identitas, fr. L. idem the same, from the root of is he, that; cf. Skr. idam this. Cf. Item.] 1. The state or quality of being identical, or the same; sameness.

Identity is a relation between our cognitions of a thing, not between things themselves.

Sir W. Hamilton.

2. The condition of being the same with something described or asserted, or of possessing a character claimed; as, to establish the identity of stolen goods.

3. (Math.) An identical equation.

I"de*o- (?). A combining form from the Gr. &?;, an idea.

I`de*o*gen"ic*al (?), a. Of or relating to ideology.

I`de*og"e*ny (?), n. [Ideo- + -geny, from the same root as Gr. &?;, birth: cf. F. idéogénie.] The science which treats of the origin of ideas.

I*de"o*gram (?), n. [Ideo- + -gram; cf. F. idéograme.] 1. An original, pictorial element of writing; a kind of hieroglyph expressing no sound, but only an idea.

Ideograms may be defined to be pictures intended to represent either things or thoughts.

I. Taylor (The Alphabet).

You might even have a history without language written or spoken, by means of ideograms and gesture.

J. Peile.

2. A symbol used for convenience, or for abbreviation; as, 1, 2, 3, +, -, &?;, $, &?;, etc.

3. A phonetic symbol; a letter.

I*de"o*graph (?), n. Same as Ideogram.

{ I`de*o*graph"ic (?), I`de*o*graph"ic*al (?), } a. [Cf. F. idéographique.] Of or pertaining to an ideogram; representing ideas by symbols, independently of sounds; as, 9 represents not the word "nine," but the idea of the number itself. -- I`de*o*graph"ic*al*ly, adv.

I`de*o*graph"ics (?), n. The system of writing in ideographic characters; also, anything so written.

I`de*og"ra*phy (?), n. The representation of ideas independently of sounds, or in an ideographic manner, as sometimes is done in shorthand writing, etc.

I`de*o*log"ic*al (?), a. [Cf. F. idéologique.] Of or pertaining to ideology.

I`de*ol"o*gist (?), n. One who treats of ideas; one who theorizes or idealizes; one versed in the science of ideas, or who advocates the doctrines of ideology.

I`de*ol"o*gy (?), n. [Ideo- + -logy: cf. F. idéologie.] 1. The science of ideas. Stewart.

2. (Metaph.) A theory of the origin of ideas which derives them exclusively from sensation.

&fist; By a double blunder in philosophy and Greek, idéologie . . . has in France become the name peculiarly distinctive of that philosophy of mind which exclusively derives our knowledge from sensation. Sir W. Hamilton.

I`de*o-mo"tion (?), n. (Physiol.) An ideo-motor movement.

I`de*o-mo"tor (?), a. [Ideo- + motor.] (Physiol.) Applied to those actions, or muscular movements, which are automatic expressions of dominant ideas, rather than the result of distinct volitional efforts, as the act of expressing the thoughts in speech, or in writing, while the mind is occupied in the composition of the sentence. Carpenter.

Ides (īdz), n. pl. [L. idus: cf. F. ides.] (Anc. Rom. Calendar) The fifteenth day of March, May, July, and October, and the thirteenth day of the other months.

The ides of March remember.

Shak.

&fist; Eight days in each month often pass by this name, but only one strictly receives it, the others being called respectively the day before the ides, and so on, backward, to the eighth from the ides.

Id"i*o- (&ibreve;d"&ibreve;*&osl;-). A combining form from the Greek 'i`dios, meaning private, personal, peculiar, distinct.

Id"i*o*blast (&ibreve;d"&ibreve;*&osl;*blăst), n. [Ideo- + -blast.] (Bot.) An individual cell, differing greatly from its neighbours in regard to size, structure, or contents.

||Id`i*o*cra"sis (?), n. [NL.] Idiocracy.

Id`i*oc"ra*sy (?), n.; pl. Idiocrasies (#). [Idio- + Gr. kra^sis a mixture, fr. &?; to mix: cf. F. idiocrasie.] Peculiarity of constitution; that temperament, or state of constitution, which is peculiar to a person; idiosyncrasy.

{ Id`i*o*crat"ic (?), Id`i*o*crat"ic*al (?), } a. Peculiar in constitution or temperament; idiosyncratic.

Id"i*o*cy (&ibreve;d"&ibreve;*&osl;*s&ybreve;), n. [From idiot; cf. Gr. &?; uncouthness, want of education, fr. &?;. See Idiot, and cf. Idiotcy.] The condition or quality of being an idiot; absence, or marked deficiency, of sense and intelligence.

I will undertake to convict a man of idiocy, if he can not see the proof that three angles of a triangle are equal to two right angles.

F. W. Robertson.

Id`i*o*cy*cloph"a*nous (?), a. [Idio- + Gr. &?; circle + &?; to appear.] (Crystallog.) Same as Idiophanous.

Id`i*o*e*lec"tric (?), a. [Idio- + electric: cf. F. idioélectrique.] (Physics) Electric by virtue of its own peculiar properties; capable of becoming electrified by friction; -- opposed to anelectric. -- n. An idioelectric substance.

Id"i*o*graph (&ibreve;d"&ibreve;*&osl;*gr&adot;f), n. [Gr. &?; autographic; 'i`dios one's own + gra`fein to write.] A mark or signature peculiar to an individual; a trade-mark.

{ Id`i*o*graph"ic (&ibreve;d`&ibreve;*&osl;*grăf"&ibreve;k), Id`i*o*graph"ic*al (?), } a. Of or pertaining to an idiograph.

Id`i*ol"a*try (?), n. [Idio- + Gr. &?; to worship.] Self-worship; excessive self- esteem.

Id"i*om (&ibreve;d"&ibreve;*ŭm), n. [F. idiome, L. idioma, fr. Gr. 'idi`wma, fr. 'idioy^n to make a person's own, to make proper or peculiar; fr. 'i`dios one's own, proper, peculiar; prob. akin to the reflexive pronoun o"y^, o'i^, 'e`, and to "eo`s, 'o`s, one's own, L. suus, and to E. so.] 1. The syntactical or structural form peculiar to any language; the genius or cast of a language.

Idiom may be employed loosely and figuratively as a synonym of language or dialect, but in its proper sense it signifies the totality of the general rules of construction which characterize the syntax of a particular language and distinguish it from other tongues.

G. P. Marsh.

By idiom is meant the use of words which is peculiar to a particular language.

J. H. Newman.

He followed their language [the Latin], but did not comply with the idiom of ours.

Dryden.

2. An expression conforming or appropriate to the peculiar structural form of a language; in extend use, an expression sanctioned by usage, having a sense peculiar to itself and not agreeing with the logical sense of its structural form; also, the phrase forms peculiar to a particular author.

Some that with care true eloquence shall teach,
And to just idioms fix our doubtful speech.

Prior.

Sometimes we identify the words with the object -- though by courtesy of idiom rather than in strict propriety of language.

Coleridge.

Every good writer has much idiom.

Landor.

It is not by means of rules that such idioms as the following are made current: "I can make nothing of it." "He treats his subject home." Dryden. "It is that within us that makes for righteousness." M. Arnold.

Gostwick (Eng. Gram.)

3. Dialect; a variant form of a language.

Syn. -- Dialect. -- Idiom, Dialect. The idioms of a language belong to its very structure; its dialects are varieties of expression ingrafted upon it in different localities or by different professions. Each county of England has some peculiarities of dialect, and so have most of the professions, while the great idioms of the language are everywhere the same. See Language.

{ Id`i*o*mat"ic (?), Id`i*o*mat"ic*al (?), } a. [Gr. 'idiwmatiko`s.] Of or pertaining to, or conforming to, the mode of expression peculiar to a language; as, an idiomatic meaning; an idiomatic phrase. -- Id`i*o*mat"ic*al*ly, adv.

Id`i*o*morph"ic (?), a. Idiomorphous.

Id`i*o*morph"ous (?), a. [Gr. 'idio`morfos of peculiar form; 'i`dios peculiar + &?; form.] 1. Having a form of its own.

2. (Crystallog.) Apperaing in distinct crystals; -- said of the mineral constituents of a rock.

Id`i*o*mus"cu*lar (?), a. [Idio- + muscular.] (Physiol.) Applied to a semipermanent contraction of a muscle, produced by a mechanical irritant.

Id`i*o*pa*thet"ic (?), a. Idiopathic. [R.]

{ Id`i*o*path"ic (?), Id`i*o*path"ic*al (?), } a. [Cf. F. idiopathique.] (Med.) Pertaining to idiopathy; characterizing a disease arising primarily, and not in consequence of some other disease or injury; -- opposed to symptomatic, sympathetic, and traumatic. -- Id`i*o*path"ic*al*ly, adv.

Id`i*op"a*thy (?), n.; pl. Idiopathies (#). [Gr. &?;; 'i`dios proper, peculiar + &?;, &?;, to suffer: cf. F. idiopathie.] 1. A peculiar, or individual, characteristic or affection.

All men are so full of their own fancies and idiopathies, that they scarce have the civility to interchange any words with a stranger.

Dr. H. More.

2. (Med.) A morbid state or condition not preceded or occasioned by any other disease; a primary disease.

Id`i*oph"a*nous (?), a. [Idio- + &?; to appear.] (Crystallog.) Exhibiting interference figures without the aid of a polariscope, as certain crystals.

Id"i*o*plasm (?), n. (Biol.) Same as Idioplasma.

||Id`i*o*plas"ma (?), n. [NL., fr. Gr. 'i`dios proper, peculiar + &?; a form, mold.] (Biol.) That portion of the cell protoplasm which is the seat of all active changes, and which carries on the function of hereditary transmission; -- distinguished from the other portion, which is termed nutritive plasma. See Hygroplasm.

Id`i*o*re*pul"sive (?), a. [Idio- + repulsive.] Repulsive by itself; as, the idiorepulsive power of heat.

Id`i*o*syn"cra*sy (?), n.; pl. Idiosyncrasies (#). [Gr. &?;; 'i`dios proper, peculiar + &?; a mixing together, fr. &?; to mix together; &?; with + &?; to mix: cf. F. idiosyncrasie. See Idiom, and Crasis.] A peculiarity of physical or mental constitution or temperament; a characteristic belonging to, and distinguishing, an individual; characteristic susceptibility; idiocrasy; eccentricity.

The individual mind . . . takes its tone from the idiosyncrasies of the body.

I. Taylor.

{ Id`i*o*syn*crat"ic (?), Id`i*o*syn*crat"ic*al (?), } a. Of peculiar temper or disposition; belonging to one's peculiar and individual character.

Id"i*ot (&ibreve;d"&ibreve;*&obreve;t), n. [F. idiot, L. idiota an uneducated, ignorant, ill-informed person, Gr. 'idiw`ths, also and orig., a private person, not holding public office, fr. 'i`dios proper, peculiar. See Idiom.] 1. A man in private station, as distinguished from one holding a public office. [Obs.]

St. Austin affirmed that the plain places of Scripture are sufficient to all laics, and all idiots or private persons.

Jer. Taylor.

2. An unlearned, ignorant, or simple person, as distinguished from the educated; an ignoramus. [Obs.]

Christ was received of idiots, of the vulgar people, and of the simpler sort, while he was rejected, despised, and persecuted even to death by the high priests, lawyers, scribes, doctors, and rabbis.

C. Blount.

3. A human being destitute of the ordinary intellectual powers, whether congenital, developmental, or accidental; commonly, a person without understanding from birth; a natural fool; a natural; an innocent.

Life . . . is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.

Shak.

4. A fool; a simpleton; -- a term of reproach.

Weenest thou make an idiot of our dame?

Chaucer.

Id"i*ot*cy (?), n. [Cf. Idiocy.] Idiocy. [R.]

Id"i*ot*ed (?), a. Rendered idiotic; befooled. [R.] Tennyson.

Id`i*o*ther"mic (?), a. [Idio- + thermic.] Self-heating; warmed, as the body of animal, by process going on within itself.

{ Id`i*ot"ic (?), Id`i*ot"ic*al (?), } a. [L. idioticus ignorant, Gr. &?;: cf. F. idiotique. See Idiot.] 1. Common; simple. [Obs.] Blackwall.

2. Pertaining to, or like, an idiot; characterized by idiocy; foolish; fatuous; as, an idiotic person, speech, laugh, or action.

Id`i*ot"ic*al*ly, adv. In an idiotic manner.

Id`i*ot"i*con (?), n. [NL., fr. Gr. &?; belonging to a private man, private. See Idiot.] A dictionary of a peculiar dialect, or of the words and phrases peculiar to one part of a country; a glossary.

Id"i*ot*ish (?), a. Like an idiot; foolish.

Id"i*ot*ism (?), n. [F. idiotisme, L. idiotismus the way of fashion of a private person, the common or vulgar manner of speaking, Gr. &?;, fr. &?; to put into or use common language, fr. &?;. See Idiot.] 1. An idiom; a form, mode of expression, or signification, peculiar to a language.

Scholars sometimes give terminations and idiotisms, suitable to their native language, unto words newly invented.

M. Hale.

2. Lack of knowledge or mental capacity; idiocy; foolishness.

Worse than mere ignorance or idiotism.

Shaftesbury.

The running that adventure is the greatist idiotism.

Hammond.

Id"i*ot*ize (?), v. i. To become stupid. [R.]

Id"i*ot*ry (?), n. Idiocy. [R.] Bp. Warburton.

I"dle (?), a. [Compar. Idler (?); superl. Idlest.] [OE. idel, AS. īdel vain, empty, useless; akin to OS. īdal, D. ijdel, OHG. ītal vain, empty, mere, G. eitel, Dan. & Sw. idel mere, pure, and prob. to Gr. &?; clear, pure, &?; to burn. Cf. Ether.] 1. Of no account; useless; vain; trifling; unprofitable; thoughtless; silly; barren. "Deserts idle." Shak.

Every idle word that men shall speak, they shall give account thereof in the day of judgment.

Matt. xii. 36.

Down their idle weapons dropped.

Milton.

This idle story became important.

Macaulay.

2. Not called into active service; not turned to appropriate use; unemployed; as, idle hours.

The idle spear and shield were high uphing.

Milton.

3. Not employed; unoccupied with business; inactive; doing nothing; as, idle workmen.

Why stand ye here all the day idle?

Matt. xx. 6.

4. Given rest and ease; averse to labor or employment; lazy; slothful; as, an idle fellow.

5. Light-headed; foolish. [Obs.] Ford.

Idle pulley (Mach.), a pulley that rests upon a belt to tighten it; a pulley that only guides a belt and is not used to transmit power. -- Idle wheel (Mach.), a gear wheel placed between two others, to transfer motion from one to the other without changing the direction of revolution. -- In idle, in vain. [Obs.] "God saith, thou shalt not take the name of thy Lord God in idle." Chaucer.

Syn. -- Unoccupied; unemployed; vacant; inactive; indolent; sluggish; slothful; useless; ineffectual; futile; frivolous; vain; trifling; unprofitable; unimportant. -- Idle, Indolent, Lazy. A propensity to inaction is expressed by each of these words; they differ in the cause and degree of this characteristic. Indolent denotes an habitual love to ease, a settled dislike of movement or effort; idle is opposed to busy, and denotes a dislike of continuous exertion. Lazy is a stronger and more contemptuous term than indolent.

I"dle, v. i. [imp. & p. p. Idled (?); p. pr. & vb. n. Idling (?).] To lose or spend time in inaction, or without being employed in business. Shak.

I"dle, v. t. To spend in idleness; to waste; to consume; -- often followed by away; as, to idle away an hour a day.

I"dle-head`ed (?), a. 1. Foolish; stupid. [Obs.] "The superstitious idle-headed eld." Shak.

2. Delirious; infatuated. [Obs.] L'Estrange.

I"dle*ness, n. [AS. īdelnes.] The condition or quality of being idle (in the various senses of that word); uselessness; fruitlessness; triviality; inactivity; laziness.

Syn. -- Inaction; indolence; sluggishness; sloth.

I"dle-pat`ed (?), a. Idle-headed; stupid. [Obs.]

I"dler (?), n. 1. One who idles; one who spends his time in inaction; a lazy person; a sluggard.

2. (Naut.) One who has constant day duties on board ship, and keeps no regular watch. Totten.

3. (Mach.) An idle wheel or pulley. See under Idle.

{ I"dless, I"dlesse } (?), n. Idleness. [Archaic] "In ydlesse." Spenser.

And an idlesse all the day
Beside a wandering stream.

Mrs. Browning.

I"dly (?), adv. In a idle manner; ineffectually; vainly; lazily; carelessly; (Obs.) foolishly.

Id"o*crase (&ibreve;d"&osl;*krās; 277), n. [Gr. e'i^dos form + kra^sis mixture, fr. keranny`nai to mix; cf. F. idocrase.] (Min.) Same as Vesuvianite.

I"dol (?), n. [OE. idole, F. idole, L. idolum, fr. Gr. &?;, fr. &?; that which is seen, the form, shape, figure, fr. &?; to see. See Wit, and cf. Eidolon.] 1. An image or representation of anything. [Obs.]

Do her adore with sacred reverence,
As th' idol of her maker's great magnificence.

Spenser.

2. An image of a divinity; a representation or symbol of a deity or any other being or thing, made or used as an object of worship; a similitude of a false god.

That they should not worship devils, and idols of gold.

Rev. ix. 20.

3. That on which the affections are strongly (often excessively) set; an object of passionate devotion; a person or thing greatly loved or adored.

The soldier's god and people's idol.

Denham.

4. A false notion or conception; a fallacy. Bacon.

The idols of preconceived opinion.

Coleridge.

I`do*las"tre (?), n. [OE., for idolatre.] An idolater. [Obs.] Chaucer.

I*dol"a*ter (?), n. [F. idolâtre: cf. L. idololatres, Gr. &?;. See Idolatry.] 1. A worshiper of idols; one who pays divine honors to images, statues, or representations of anything made by hands; one who worships as a deity that which is not God; a pagan.

2. An adorer; a great admirer.

Jonson was an idolater of the ancients.

Bp. Hurd.

I*dol"a*tress (?), n. A female worshiper of idols.

I`do*lat"ric*al (?), a. [Cf. F. idolâtrique.] Idolatrous. [Obs.]

I*dol"a*trize (?), v. i. [imp. & p. p. Idolatrized (?); p. pr. & vb. n. Idolatrizing (?).] To worship idols; to pay idolatrous worship.

I*dol"a*trize, v. t. To make in idol of; to idolize.

I*dol"a*trous (?), a. 1. Of or pertaining to idolatry; partaking of the nature of idolatry; given to idolatry or the worship of false gods; as, idolatrous sacrifices.

[Josiah] put down the idolatrous priests.

2 Kings xxiii. 5.

2. Consisting in, or partaking of, an excessive attachment or reverence; as, an idolatrous veneration for antiquity.

I*dol"a*trous*ly, adv. In a idolatrous manner.

I*dol"a*try (?), n.; pl. Idolatries (#). [F. idolâtrie, LL. idolatria, L. idololatria, Fr. Gr. &?;; &?; idol + &?; service.] 1. The worship of idols, images, or anything which is not God; the worship of false gods.

His eye surveyed the dark idolatries
Of alienated Judah.

Milton.

2. Excessive attachment or veneration for anything; respect or love which borders on adoration. Shak.

I"dol*ish (?), a. Idolatrous. [Obs.] Milton.

I"dol*ism (?), n. The worship of idols. [Obs.]

I"dol*ist, n. A worshiper of idols. [Obs.] Milton.

I"dol*ize (?), v. t. [imp. & p. p. Idolized (?); p. pr. & vb. n. Idolizing (?).] 1. To make an idol of; to pay idolatrous worship to; as, to idolize the sacred bull in Egypt.

2. To love to excess; to love or reverence to adoration; as, to idolize gold, children, a hero.

I"dol*ize, v. i. To practice idolatry. [R.]

To idolize after the manner of Egypt.

Fairbairn.

I"dol*i`zer (?), n. One who idolizes or loves to the point of reverence; an idolater.

I*dol"o*clast (?), n. [Gr. &?; idol + &?; to break.] A breaker of idols; an iconoclast.

I*dol`o*graph"ic*al (?), a. [Idol + -graph.] Descriptive of idols. [R.] Southey.

I"dol*ous (?), a. Idolatrous. [Obs.] Bale.

I*do"ne*ous (?), a. [L. idoneus.] Appropriate; suitable; proper; fit; adequate. [R.]

An ecclesiastical benefice . . . ought to be conferred on an idoneous person.

Ayliffe.

Id*or"gan (?), n. [Gr. &?; form + E. organ.] (Biol.) A morphological unit, consisting of two or more plastids, which does not possess the positive character of the person or stock, in distinction from the physiological organ or biorgan. See Morphon.

{ Id"ri*a*line (?), Id"ri*a*lite (?), } n. [Cf. F. idrialine.] (Min.) A bituminous substance obtained from the mercury mines of Idria, where it occurs mixed with cinnabar.

Id`u*me"an (?), a. Of or pertaining to ancient Idumea, or Edom, in Western Asia. -- n. An inhabitant of Idumea, an Edomite.

I"dyl (?), n. [L. idyllium, Gr. &?;, fr. &?; form; literally, a little form of image: cf. F. idylle. See Idol.] A short poem; properly, a short pastoral poem; as, the idyls of Theocritus; also, any poem, especially a narrative or descriptive poem, written in an eleveted and highly finished style; also, by extension, any artless and easily flowing description, either in poetry or prose, of simple, rustic life, of pastoral scenes, and the like. [Written also idyll.]

Wordsworth's solemn-thoughted idyl.

Mrs. Browning.

His [Goldsmith's] lovely idyl of the Vicar's home.

F. Harrison.

I*dyl"lic (?), a. Of or belonging to idyls.

I. e. Abbreviation of Latin id est, that is.

If (?), conj. [OE. if, gif, AS. gif; akin to OFries. ief, gef, ef, OS. ef, of, D. of, or, whether, if, G. ob whether, if, OHG. oba, ibu, Icel. ef, Goth. iba, ibai, an interrogative particle; properly a case form of a noun meaning, doubt (cf. OHG. iba doubt, condition, Icel. if, ef, ifi, efi), and therefore orig. meaning, on condition that.] 1. In case that; granting, allowing, or supposing that; -- introducing a condition or supposition.

Tisiphone, that oft hast heard my prayer,
Assist, if Œdipus deserve thy care.

Pope.

If thou be the Son of God, command that these stones be made bread.

Matt. iv. 3.

2. Whether; -- in dependent questions.

Uncertain if by augury or chance.

Dryden.

She doubts if two and two make four.

Prior.

As if, But if. See under As, But.

I' faith" (?). In faith; indeed; truly. Shak.

I*fere" (?), a. [Corrupted fr. in fere.] Together. [Obs.] Chaucer.

Ig`a*su"ric (?), a. [See Igasurine.] (Chem.) Pertaining to, or obtained from, nux vomica or St. Ignatius's bean; as, igasuric acid.

Ig`a*su"rine (?), n. [Malay igasura the nux vomica.] (Chem.) An alkaloid found in nux vomica, and extracted as a white crystalline substance.

Ig"loo (?), n. 1. An Eskimo snow house.

2. (Zoöl.) A cavity, or excavation, made in the snow by a seal, over its breathing hole in the ice.

Ig*na"tius bean` (?). (Bot.) See Saint Ignatius's bean, under Saint.

Ig"ne*ous (?), a. [L. igneus, fr. ignis fire; allied to Skr. agni, Lith. ugnis, OSlav. ogne.] 1. Pertaining to, having the nature of, fire; containing fire; resembling fire; as, an igneous appearance.

2. (Geol.) Resulting from, or produced by, the action of fire; as, lavas and basalt are igneous rocks.

Ig*nes"cent (?), a. [L. ignescens, p. pr. of ignescere to become inflamed, fr. ignis fire: cf. F. ignescent.] Emitting sparks of fire when struck with steel; scintillating; as, ignescent stones.

Ig*nic"o*list (?), n. [L. ignis fire + colere to worship.] A worshiper of fire. [R.]

Ig*nif"er*ous (?), a. [L. ignifer; ignis fire + ferre to bear.] Producing fire. [R.] Blount.

Ig*nif"lu*ous (?), a. [L. ignifluus; ignis fire + fluere to flow.] Flowing with fire. [Obs.] Cockerman.

Ig"ni*fy (?), v. t. [imp. & p. p. Ignified (?); p. pr. & vb. n. Ignifying (?).] [L. ignis fire + -fy.] To form into fire. [R.] Stukeley.

Ig*nig"e*nous (?), a. [L. ignigenus; ignis fire + genere, ginere, to beget, produce.] Produced by the action of fire, as lava. [R.]

Ig*nip"o*tence (?), n. Power over fire. [R.]

Ig*nip"o*tent (?), a. [L. ignipotens; ignis fire + potens powerful.] Presiding over fire; also, fiery.

Vulcan is called the powerful ignipotent.

Pope.

||Ig"nis fat"u*us (?); pl. Ignes fatui (#). [L. ignis fire + fatuus foolish. So called in allusion to its tendency to mislead travelers.] 1. A phosphorescent light that appears, in the night, over marshy ground, supposed to be occasioned by the decomposition of animal or vegetable substances, or by some inflammable gas; -- popularly called also Will-with-the-wisp, or Will-o'-the-wisp, and Jack-with-a-lantern, or Jack-o'-lantern.

2. Fig.: A misleading influence; a decoy.

Scared and guided by the ignis fatuus of popular superstition.

Jer. Taylor.

Ig*nite" (?), v. t. [imp. & p. p. Ignited (?); p. pr. & vb. n. Igniting.] [L. ignitus, p. p. of ignire to ignite, fr. ignis fire. See Igneous.] 1. To kindle or set on fire; as, to ignite paper or wood.

2. (Chem.) To subject to the action of intense heat; to heat strongly; -- often said of incombustible or infusible substances; as, to ignite iron or platinum.

Ig*nite", v. i. To take fire; to begin to burn.

Ig*nit"i*ble (?), a. Capable of being ignited.

Ig*ni"tion (?), n. [Cf. F. ignition.] 1. The act of igniting, kindling, or setting on fire.

2. The state of being ignited or kindled. Sir T. Browne.

Ig*nit"or (?), n. One who, or that which, produces ignition; especially, a contrivance for igniting the powder in a torpedo or the like. [Written also igniter.]

Ig*niv"o*mous (?), a. [L. ignivomus; ignis fire + vomere 8vomit.] Vomiting fire. [R.]

Ig`no*bil"i*ty (?), n. [L. ignobilitas: cf. F. ignobilité.] Ignobleness. [Obs.] Bale.

Ig*no"ble (?), a. [L. ignobilis; pref. in- not + nobilis noble: cf. F. ignoble. See In- not, and Noble, a.] 1. Of low birth or family; not noble; not illustrious; plebeian; common; humble.

I was not ignoble of descent.

Shak.

Her royal stock graft with ignoble plants.

Shak.

2. Not honorable, elevated, or generous; base.

'T is but a base, ignoble mind,
That mounts no higher than a bird can soar.

Shak.

Far from the madding crowd's ignoble strife.

Gray.

3. (Zoöl.) Not a true or noble falcon; -- said of certain hawks, as the goshawk.

Syn. -- Degenerate; degraded; mean; base; dishonorable; reproachful; disgraceful; shameful; scandalous; infamous.

Ig*no"ble, v. t. To make ignoble. [Obs.] Bacon.

Ig*no"ble*ness, n. State or quality of being ignoble.

Ig*no"bly, adv. In an ignoble manner; basely.

Ig`no*min"i*ous (?), a. [L. ignominiosus: cf. F. ignominieux.] 1. Marked with ignominy; incurring public disgrace; dishonorable; shameful.

Then first with fear surprised and sense of pain,
Fled ignominious.

Milton.

2. Deserving ignominy; despicable.

One single, obscure, ignominious projector.

Swift.

3. Humiliating; degrading; as, an ignominious judgment or sentence. Macaulay.

Ig`no*min"i*ous*ly, adv. In an ignominious manner; disgracefully; shamefully; ingloriously.

Ig"no*min*y (?), n.; pl. Ignominies (#). [L. ignominia ignominy (i.e., a deprivation of one's good name); in- not + nomen name: cf. F. ignominie. See In- not, and Name.] 1. Public disgrace or dishonor; reproach; infamy.

Their generals have been received with honor after their defeat; yours with ignominy after conquest.

Addison.

Vice begins in mistake, and ends in ignominy.

Rambler.

Ignominy is the infliction of such evil as is made dishonorable, or the deprivation of such good as is made honorable by the Commonwealth.

Hobbes.

2. An act deserving disgrace; an infamous act.

Syn. -- Opprobrium; reproach; dishonor.

Ig"no*my (?), n. Ignominy. [R. & Obs.]

I blush to think upon this ignomy.

Shak.

Ig`no*ra"mus (?), n. [L., we are ignorant. See Ignore.] 1. (Law) We are ignorant; we ignore; -- being the word formerly written on a bill of indictment by a grand jury when there was not sufficient evidence to warrant them in finding it a true bill. The phrase now used is, "No bill," "No true bill," or "Not found," though in some jurisdictions "Ignored" is still used. Wharton (Law Dict. ). Burn.

2. (pl. Ignoramuses (&?;).) A stupid, ignorant person; a vain pretender to knowledge; a dunce.

An ignoramus in place and power.

South.

Ig"no*rance (?), n. [F., fr. L. ignorantia.] 1. The condition of being ignorant; the want of knowledge in general, or in relation to a particular subject; the state of being uneducated or uninformed.

Ignorance is the curse of God,
Knowledge the wing wherewith we fly to heaven.

Shak.

2. (Theol.) A willful neglect or refusal to acquire knowledge which one may acquire and it is his duty to have. Book of Common Prayer.

Invincible ignorance (Theol.), ignorance beyond the individual's control and for which, therefore, he is not responsible before God.

Ig"no*rant (?), a. [F., fr. L. ignorans, -antis, p. pr. of ignorare to be ignorant. See Ignore.] 1. Destitute of knowledge; uninstructed or uninformed; untaught; unenlightened.

He that doth not know those things which are of use for him to know, is but an ignorant man, whatever he may know besides.

Tillotson.

2. Unacquainted with; unconscious or unaware; -- used with of.

Ignorant of guilt, I fear not shame.

Dryden.

3. Unknown; undiscovered. [Obs.]

Ignorant concealment.

Shak.

Alas, what ignorant sin have I committed?

Shak.

4. Resulting from ignorance; foolish; silly.

His shipping,
Poor ignorant baubles! -- on our terrible seas,
Like eggshells moved.

Shak.

Syn. -- Uninstructed; untaught; unenlightened; uninformed; unlearned; unlettered; illiterate. -- Ignorant, Illiterate. Ignorant denotes want of knowledge, either as to single subject or information in general; illiterate refers to an ignorance of letters, or of knowledge acquired by reading and study. In the Middle Ages, a great proportion of the higher classes were illiterate, and yet were far from being ignorant, especially in regard to war and other active pursuits.

In such business
Action is eloquence, and the eyes of the ignorant
More learned than the ears.

Shak.

In the first ages of Christianity, not only the learned and the wise, but the ignorant and illiterate, embraced torments and death.

Tillotson.

Ig"no*rant, n. A person untaught or uninformed; one unlettered or unskilled; an ignoramous.

Did I for this take pains to teach
Our zealous ignorants to preach?

Denham.

Ig"no*rant*ism (?), n. The spirit of those who extol the advantage of ignorance; obscurantism.

Ig"no*rant*ist, n. One opposed to the diffusion of knowledge; an obscurantist.

Ig"no*rant*ly, adv. In a ignorant manner; without knowledge; inadvertently.

Whom therefoer ye ignorantly worship, him declare I unto you.

Acts xvii. 23.

Ig*nore" (?), v. t. [imp. & p. p. Ignored (?); p. pr. & vb. n. Ignoring.] [L. ignorare; pref. in- not + the root of gnarus knowing, noscere to become acquainted with. See Know, and cf. Narrate.] 1. To be ignorant of or not acquainted with. [Archaic]

Philosophy would solidly be established, if men would more carefully distinguish those things that they know from those that they ignore.

Boyle.

2. (Law) To throw out or reject as false or ungrounded; -- said of a bill rejected by a grand jury for want of evidence. See Ignoramus.

3. Hence: To refuse to take notice of; to shut the eyes to; not to recognize; to disregard willfully and causelessly; as, to ignore certain facts; to ignore the presence of an objectionable person.

Ignoring Italy under our feet,
And seeing things before, behind.

Mrs. Browning.

Ig*nos"ci*ble (?), a. [L. ignoscibilis, fr. ignoscere to pardon, lit., not to wish to know; pref. in- not + gnoscere, noscere, to learn to know. See In- not, and Know.] Pardonable. [Obs.] Bailey.

Ig*note" (?), a. [L. ignotus; pref. in- not + gnotus, notus, known, p. p. of gnocere, nocere, to learn to know.] Unknown. [Obs.] Sir E. Sandys. -- n. One who is unknown. Bp. Hacket.

I*gua"na (?), n. [Sp. iguana, from the native name in Hayti. Cf. Guana.] (Zoöl.) Any species of the genus Iguana, a genus of large American lizards of the family Iguanidæ. They are arboreal in their habits, usually green in color, and feed chiefly upon fruits.

&fist; The common iguana (Iguana iguana, formerly Iguana tuberculata, and also called by other synonyms@) of the West Indies and South America is sometimes five feet long. Its flesh is highly prized as food. The horned iguana (Iguana cornuta) has a conical horn between the eyes.

I*gua"ni*an (?), a. (Zoöl.) Resembling, or pertaining to, the iguana.

I*gua"nid (?), a. (Zoöl.) Same as Iguanoid.

I*gua"no*don (?), n. [Iguana + Gr. &?;, &?;, a tooth.] (Paleon.) A genus of gigantic herbivorous dinosaurs having a birdlike pelvis and large hind legs with three-toed feet capable of supporting the entire body. Its teeth resemble those of the iguana, whence its name. Several species are known, mostly from the Wealden of England and Europe. See Illustration in Appendix.

I*gua"no*dont (?), a. (Paleon.) Like or pertaining to the genus Iguanodon.

I*gua"noid (?), a. [Iguana + -oid.] (Zoöl.) Pertaining to the Iguanidæ.

Ih*lang`-ih*lang" (?), n. [Malayan, flower of flowers.] A rich, powerful, perfume, obtained from the volatile oil of the flowers of Canada odorata, an East Indian tree. [Also written ylang-ylang.]

||Ih*ram" (?), n. The peculiar dress worn by pilgrims to Mecca.

Ik (?), pron. [See I.] I. [Obs.] Piers Plowman.

&fist; The Northern dialectic form of I, in Early English, corresponding to ich of the Southern.

Il- (?). A form of the prefix in-, not, and in-, among. See In-.

Ile (?), n. [AS. egl.] Ear of corn. [Obs.] Ainsworth.

Ile, n. [See Aisle.] An aisle. [Obs.] H. Swinburne.

Ile, n. [See Isle.] An isle. [Obs.] Chaucer.

Il"e*ac (?), a. [See Ileum.] 1. (Anat.) Pertaining to the ileum. [Written also iliac.]

2. See Iliac, 1. [R.]

Ileac passion. (Med.) See Ileus.

Il`e*o*cæ"cal (?), a. [Ileum + cæcal.] (Anat.) Pertaining to the ileum and cæcum.

Il`e*o*col"ic (?), a. (Anat.) Pertaining to the ileum and colon; as, the ileocolic, or ileocæcal, valve, a valve where the ileum opens into the large intestine.

||Il"e*um (?), n. [L. ile, ileum, ilium, pl. ilia, groin, flank.] 1. (Anat.) The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine. [Written also ileon, and ilium.]

2. (Anat.) See Ilium. [R.]

&fist; Most modern writers restrict ileum to the division of the intestine and ilium to the pelvic bone.

||Il"e*us (?), n. [NL., fr. Gr. &?;, &?;, fr. &?; to roll up.] (Med.) A morbid condition due to intestinal obstruction. It is characterized by complete constipation, with griping pains in the abdomen, which is greatly distended, and in the later stages by vomiting of fecal matter. Called also ileac, or iliac, passion.

||I"lex (?), n. [L., holm oak.] (Bot.) (a) The holm oak (Quercus Ilex). (b) A genus of evergreen trees and shrubs, including the common holly.

Il"i*ac (?), a. [L. Iliacus, Gr. &?;. See Iliad.] Pertaining to ancient Ilium, or Troy. Gladstone.

Il"i*ac, a. [Cf. F. iliaque. See Ileum, and cf. Jade a stone.] 1. (Anat.) Pertaining to, or in the region of, the ilium, or dorsal bone of the pelvis; as, the iliac artery. [Written also ileac.]

2. See Ileac, 1. [R.]

Iliac crest, the upper margin of the ilium. -- Iliac passion. See Ileus. -- Iliac region, a region of the abdomen, on either side of the hypogastric regions, and below the lumbar regions.

I*li"a*cal (?), a. Iliac. [R.]

Il"i*ad (?), n. [L. Ilias, - adis, Gr. &?;, &?; (sc. &?;), fr. &?;, &?;, Ilium, the city of Ilus, a son of Tros, founder of Ilium, which is a poetical name of Troy.] A celebrated Greek epic poem, in twenty-four books, on the destruction of Ilium, the ancient Troy. The Iliad is ascribed to Homer.

Il"i*al (?), a. (Anat.) Pertaining to the ilium; iliac.

I*liche" (?), adv. [OE., fr. AS. gelīc. Cf. Alike.] Alike. [Obs.] Chaucer.

I*lic"ic (?), a. [L. ilex, ilicis, holm oak.] Pertaining to, or derived from, the holly (Ilex), and allied plants; as, ilicic acid.

Il"i*cin (?), n. (Chem.) The bitter principle of the holly.

Il"i*o- (?). [From Ilium.] A combining form used in anatomy to denote connection with, or relation to, the ilium; as, ilio-femoral, ilio- lumbar, ilio-psoas, etc.

Il`i*o*fem"o*ral (?), a. (Anat.) Pertaining to the ilium and femur; as, iliofemoral ligaments.

Il`i*o*lum"bar (?), a. (Anat.) Pertaining to the iliac and lumbar regions; as, the iliolumbar artery.

Il`i*o*pso"as (?), n. (Anat.) The great flexor muscle of the hip joint, divisible into two parts, the iliac and great psoas, -- often regarded as distinct muscles.

||Il"i*um (?), n. [See Ileum.] (Anat.) The dorsal one of the three principal bones comprising either lateral half of the pelvis; the dorsal or upper part of the hip bone. See Innominate bone, under Innominate. [Written also ilion, and ileum.]

Il`ix*an"thin (?), n. [Ilex the genus including the holly + Gr. &?; yellow.] (Chem.) A yellow dye obtained from the leaves of the holly.

Ilk (?), a. [Scot. ilk, OE. ilke the same, AS. ilca. Cf. Each.] Same; each; every. [Archaic] Spenser.

Of that ilk, denoting that a person's surname and the title of his estate are the same; as, Grant of that ilk, i.e., Grant of Grant. Jamieson.

Il"ke (?), a. [See Ilk.] Same. [Obs.] Chaucer.

{ Il*kon", Il*koon" (?) }, pron. [See Ilk, and One.] Each one; every one. [Obs.] Chaucer.

Ill (?), a. [The regular comparative and superlative are wanting,