Webster's Unabridged Dictionary - Letter I - Page 75

Irritate (v. t.) To produce irritation in; to stimulate; to cause to contract. See Irritation, n., 2.

Irritate (n.) To make morbidly excitable, or oversensitive; to fret; as, the skin is irritated by friction; to irritate a wound by a coarse bandage.

Irritate (a.) Excited; heightened.

Irritation (n.) The act of irritating, or exciting, or the state of being irritated; excitement; stimulation, usually of an undue and uncomfortable kind; especially, excitement of anger or passion; provocation; annoyance; anger.

Irritation (n.) The act of exciting, or the condition of being excited to action, by stimulation; -- as, the condition of an organ of sense, when its nerve is affected by some external body; esp., the act of exciting muscle fibers to contraction, by artificial stimulation; as, the irritation of a motor nerve by electricity; also, the condition of a muscle and nerve, under such stimulation.

Irritation (n.) A condition of morbid excitability or oversensitiveness of an organ or part of the body; a state in which the application of ordinary stimuli produces pain or excessive or vitiated action.

Irritative (a.) Serving to excite or irritate; irritating; as, an irritative agent.

Irritative (a.) Accompanied with, or produced by, increased action or irritation; as, an irritative fever.

Irritatory (a.) Exciting; producing irritation; irritating.

Irrorated (imp. & p. p.) of Irrorate

Irrorating (p. pr. & vb. n.) of Irrorate

Irrorate (v. t.) To sprinkle or moisten with dew; to bedew.

Irrorate (a.) Covered with minute grains, appearing like fine sand.

Irroration (n.) The act of bedewing; the state of being moistened with dew.

Irrotational (a.) Not rotatory; passing from one point to another by a movement other than rotation; -- said of the movement of parts of a liquid or yielding mass.

Irrubrical (a.) Contrary to the rubric; not rubrical.

Irrugate (v. t.) To wrinkle.

Irrupted (a.) Broken with violence.

Irruption (n.) A bursting in; a sudden, violent rushing into a place; as, irruptions of the sea.

Irruption (n.) A sudden and violent inroad, or entrance of invaders; as, the irruptions of the Goths into Italy.

Irruptive (a.) Rushing in or upon.

Irvingite (n.) The common designation of one a sect founded by the Rev. Edward Irving (about 1830), who call themselves the Catholic Apostolic Church. They are highly ritualistic in worship, have an elaborate hierarchy of apostles, prophets, etc., and look for the speedy coming of Christ.

Is- () See Iso-.

Is (v. i.) The third person singular of the substantive verb be, in the indicative mood, present tense; as, he is; he is a man. See Be.

Isabel () Alt. of Isabel color

Isabel color () See Isabella.

Isabella () Alt. of Isabella color

Isabella color () A brownish yellow color.

Isabella grape () A favorite sweet American grape of a purple color. See Fox grape, under Fox.

Isabella moth () A common American moth (Pyrrharctia isabella), of an isabella color. The larva, called woolly bear and hedgehog caterpillar, is densely covered with hairs, which are black at each end of the body, and red in the middle part.

Isabelline (a.) Of an isabel or isabella color.

Isagelous (a.) Containing the same information; as, isagelous sentences.

Isagel (n.) One of two or more objects containing the same information.

Isagoge (n.) An introduction.

Isagogic (a.) Alt. of Isagogical

Isagogical (a.) Introductory; especially, introductory to the study of theology.

Isagogics (n.) That part of theological science directly preliminary to actual exegesis, or interpretation of the Scriptures.

Isagon (a.) A figure or polygon whose angles are equal.

Isapostolic (a.) Having equal, or almost equal, authority with the apostles of their teachings.

Isatic (a.) Alt. of Isatinic

Isatinic (a.) Pertaining to, or derived from, isatin; as, isatic acid, which is also called trioxindol.

Isatide (n.) A white crystalline substance obtained by the partial reduction of isatin.

Isatin (n.) An orange-red crystalline substance, C8H5NO2, obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic acid, and is one important source of artificial indigo.

Isatis (n.) A genus of herbs, some species of which, especially the Isatis tinctoria, yield a blue dye similar to indigo; woad.

Isatogen (n.) A complex nitrogenous radical, C8H4NO2, regarded as the essential residue of a series of compounds, related to isatin, which easily pass by reduction to indigo blue.

Isatropic (a.) Pertaining to, or designating, an acid obtained from atropine, and isomeric with cinnamic acid.

Ischias (a.) See Ischial.

Ischiadic (a.) Ischial.

Ischial (a.) Of or pertaining to the ischium or hip; ischiac; ischiadic; ischiatic.

Ischiatic (a.) Same as Ishial.

Ischiocapsular (a.) Of or pertaining to the ischium and the capsule of the hip joint; as, the ischiocapsular ligament.

Ischiocerite (n.) The third joint or the antennae of the Crustacea.

Ischion (n.) Alt. of Ischium

Ischium (n.) The ventral and posterior of the three principal bones composing either half of the pelvis; seat bone; the huckle bone.

Ischium (n.) One of the pleurae of insects.

Ischiopodite (n.) The third joint of the typical appendages of Crustacea.

Ischiorectal (a.) Of or pertaining to the region between the rectum and ishial tuberosity.

Ischuretic (a.) Having the quality of relieving ischury.

Ischuretic (n.) An ischuretic medicine.

Ischury (n.) A retention or suppression of urine.

-ise () See -ize.

Isentropic (a.) Having equal entropy.

Isethionic (a.) Pertaining to, derived from, or designating, an acid, HO.C2H4.SO3H, obtained as an oily or crystalline substance, by the action of sulphur trioxide on alcohol or ether. It is derivative of sulphuric acid.

-ish () A suffix used to from adjectives from nouns and from adjectives. It denotes relation, resemblance, similarity, and sometimes has a diminutive force; as, selfish, boyish, brutish; whitish, somewhat white.

-ish () A verb ending, originally appearing in certain verbs of French origin; as, abolish, cherish, finish, furnish, garnish, impoverish.

Ishmaelite (n.) A descendant of Ishmael (the son of Abraham and Hagar), of whom it was said, "His hand will be against every man, and every man's hand against him."

Ishmaelite (n.) One at enmity with society; a wanderer; a vagabond; an outcast.

Ishmaelite (n.) See Ismaelian.

Ishmaelitish (a.) Of, pertaining to, or resembling, an Ishmaelite or the Ishmaelites.

Isiac (a.) Pertaining to the goddess Isis; as, Isiac mysteries.

Isicle (n.) A icicle.

Isidorian (a.) Pertaining, or ascribed, to Isidore; as, the Isidorian decretals, a spurious collection of decretals published in the ninth century.

Isinglass (n.) A semitransparent, whitish, and very pure from of gelatin, chiefly prepared from the sounds or air bladders of various species of sturgeons (as the Acipenser huso) found in the of Western Russia. It used for making jellies, as a clarifier, etc. Cheaper forms of gelatin are not unfrequently so called. Called also fish glue.

Isinglass (n.) A popular name for mica, especially when in thin sheets.

Isis (n.) The principal goddess worshiped by the Egyptians. She was regarded as the mother of Horus, and the sister and wife of Osiris. The Egyptians adored her as the goddess of fecundity, and as the great benefactress of their country, who instructed their ancestors in the art of agriculture.

Isis (n.) Any coral of the genus Isis, or family Isidae, composed of joints of white, stony coral, alternating with flexible, horny joints. See Gorgoniacea.

Isis (n.) One of the asteroids.

Islam (n.) The religion of the Mohammedans; Mohammedanism; Islamism. Their formula of faith is: There is no God but Allah, and Mohammed is his prophet.

Islam (n.) The whole body of Mohammedans, or the countries which they occupy.

Islamism (n.) The faith, doctrines, or religious system of the Mohammedans; Mohammedanism; Islam.

Islamite (n.) A Mohammedan.

Islamitic (a.) Of or pertaining to Islam; Mohammedan.

Islamized (imp. & p. p.) of Islamize

Islamizing (p. pr. & vb. n.) of Islamize

Islamize (v. i. & t.) To conform, or cause to conform, to the religion of Islam.

Island (n.) A tract of land surrounded by water, and smaller than a continent. Cf. Continent.

Island (n.) Anything regarded as resembling an island; as, an island of ice.

Island (n.) See Isle, n., 2.

Island (v. t.) To cause to become or to resemble an island; to make an island or islands of; to isle.

Island (v. t.) To furnish with an island or with islands; as, to island the deep.

Islander (n.) An inhabitant of an island.

Islandy (a.) Of or pertaining to islands; full of islands.

Isle (n.) See Aisle.

Isle (n.) An island.

Isle (n.) A spot within another of a different color, as upon the wings of some insects.

Isle (v. t.) To cause to become an island, or like an island; to surround or encompass; to island.

Islet (n.) A little island.

-ism () A suffix indicating an act, a process, the result of an act or a process, a state; also, a characteristic (as a theory, doctrine, idiom, etc.); as, baptism, galvanism, organism, hypnotism, socialism, sensualism, Anglicism.

Ism (n.) A doctrine or theory; especially, a wild or visionary theory.

Ismaelian (n.) Alt. of Ismaelite

[previous page] [Index] [next page]