Not to be returned.

Incapable of being revealed.

The state or quality of being irreverent; lack of proper reverence; disregard of the authority and character of a superior.

Irreverent.

Not reverent; showing a lack of reverence; expressive of a lack of veneration; as, an irreverent babbler; an irreverent jest.

In an irreverent manner.

The state or quality of being irreversible; irreversibleness.

Incapable of being reversed or turned about or back; incapable of being made to run backward; as, an irreversible engine; an irreversible process; an irreversible reaction.

The state or quality of being irreversible.

In an irreversible manner.

The state or quality of being irrevocable; irrevocableness.

Incapable of being recalled or revoked; unchangeable; irreversible; unalterable; as, an irrevocable promise or decree; irrevocable fate.

Irrevocable.

That has no finite period of revolution; not revolving.

Not rhetorical.

See irredenta, irredentism, irredentist.

The act or process of irrigating, or the state of being irrigated; especially, the operation of causing water to flow over lands, for nourishing plants.

Not risible.

The act of laughing at another; derision.

Irritability.

In an irritable manner.

The state or quality of being irritant or irritating.

Irritating; producing irritation or inflammation.

Excited; heightened.

aroused to impatience or anger; as, made an irritated gesture.

causing annoyance.

Serving to excite or irritate; irritating; as, an irritative agent.

Exciting; producing irritation; irritating.

Covered with minute grains, appearing like fine sand.

The act of bedewing; the state of being moistened with dew.

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.

Contrary to the rubric; not rubrical.

To wrinkle.

Broken with violence.

Rushing in or upon.

The common designation of a member of 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.

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

See Isabella.

A brownish yellow color.

Of an isabel or isabella color.

Containing the same information; as, isagelous sentences. One of two or more objects containing the same information.

An introduction.

Introductory; especially, introductory to the study of theology.

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

A figure or polygon whose angles are equal.

Having equal, or almost equal, authority with the apostles of their teachings.

A white crystalline substance obtained by the partial reduction of isatin.

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.

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

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

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.

Pertaining to, or designating, an acid obtained from atropine, and isomeric with cinnamic acid.

See Ischial.

Ischial.

Of or pertaining to the ischium or hip; ischiac; ischiadic; ischiatic.

Same as Ischial.

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

The third joint or the antenn/ of the Crustacea.

The third joint of the typical appendages of Crustacea.

Of or pertaining to the region between the rectum and ishial tuberosity.

Having the quality of relieving ischury. An ischuretic medicine.

A retention or suppression of urine.

Having equal entropy.

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.

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./

Of, pertaining to, or resembling, an Ishmaelite or the Ishmaelites.

Pertaining to the goddess Isis; as, Isiac mysteries.

A icicle.

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

The abbreviation for International Society for Krishna Consciousness, a society founded in the US in 1966; based on Vedic scriptures. Groups of devotees engage in joyful chanting of "Hare Krishna" ("O Krishna!").

The the capital city of Pakistan.

Of or pertaining to Islam; as, Islamic art.

The faith, doctrines, or religious system of the Muslims; same as Islam, but less commonly used.

A Muslim.

Of or pertaining to Islam; Islamic; Muslim.

To conform, or cause to conform, to the religion of Islam.

To cause to become or to resemble an island; to make an island or islands of; to isle.

An inhabitant of an island.

Of or pertaining to islands; full of islands.

To cause to become an island, or like an island; to surround or encompass; to island.

A little island.

A doctrine or theory; especially, a wild or visionary theory.

One of a sect of Muslims who followed the practices of the family of Mohammed ben Ismael, of the house of Ali.

A line connecting or marking places upon the surface of the earth where height of the barometer reduced to sea level is the same either at a given time, or for a certain period (mean height), as for a year; an isopiestic line.

Denoting equal pressure; as, an isobaric line; specifically, of or pertaining to isobars.

The quality or state of being equal in weight, especially in atmospheric pressure. Also, the theory, method, or application of isobaric science.

Indicating equal barometric pressure.

A line connecting the points on the surface of the earth where a certain temperature is found at the same depth.

Of or pertaining to an isobathytherm; possessing or indicating the same temperature at the same depth.

An imaginary line, or a line on a chart, marking the simultaneous development of a thunderstorm, as noted by observing the time when the thunder is heard at different places.

A peculiarity in the design of bas-relief by which the heads of human figures are kept at the same height from the ground, whether the personages are seated, standing, or mounted on horseback; -- called also isokephaleia.

A line connecting places on the earth's surface at which there is the same mean frequency of auroras.

Indicating equal auroral display; as, an isochasmic line.

A line connecting places on the earth having the same mean winter temperature. Cf. Isothere.

The same as Isocheimal.

Pertaining to, having the nature of, or making, isocheims; as, an isocheimal line; an isocheimal chart.

The same as Isocheimal.

The same as Isocheim.

A line upon a thermodynamic diagram so drawn as to represent the pressures corresponding to changes of temperature when the volume of the gas operated on is constant.

Having the same color; connecting parts having the same color, as lines drawn through certain points in experiments on the chromatic effects of polarized light in crystals.

Uniform in time; of equal time; performed in equal times; recurring at regular intervals; as, isochronal vibrations or oscillations.

Isochronal.

The state or quality of being isochronous.

To make, or tend to make (the motion of a moving body), uniform in rate of rotation, or in frequency of vibration.

A clock that is designed to keep very accurate time.

Same as Isochronal.

Having the same tint or color throughout; uniformly or evenly colored.

Of or pertaining to, or indicating, equality of inclination or dip; having equal inclination or dip.

Pertaining to, having the nature of, or illustrating, an isocryme; as, an isocrymal line; an isocrymal chart.

A line connecting points on the earth's surface having the same mean temperature in the coldest month of the year.

Isocrymal.

Designating an acid isomeric with cyanic acid.

Designating, or pertaining to, an acid isomeric with cyanuric acid, and called also fulminuric acid. See under Fulminuric.

Pertaining to the reception or the giving out of equal quantities of heat by a substance.

Isodimorphous.

Isomorphism between the two forms severally of two dimorphous substances.

Having the quality of isodimorphism.

A method of moving a fleet from one formation to another, the direction usually being changed eight points (90/), by means of paths of equal length for each ship. It is prohibited in the United States navy.

A white, crystalline, sugarlike substance, obtained by the decomposition of certain glucosides, and intermediate in nature between the hexacid alcohols (dulcite, mannite, etc.) and the glucoses.

Of, pertaining to, having, or denoting, equality of force.