Webster's Dictionary 1913

4726

Irefulness

Ire″ful‐ness, n. Wrathfulness. Wyclif.

4727

Irenarch

I″re‐narch (?), n. [L. irenarcha, irenarches, Gr. �; � peace + � to rule.] (Gr. Antiq.) An officer in the Greek empire having functions corresponding to those of a justice of th...

4728

Irenic

{ I‐ren″ic (?), I‐ren″ic‐al (?), } a. Fitted or designed to promote peace; pacific; conciliatory; peaceful. Bp. Hall.

4729

Irenicon

‖I‐ren″i‐con (?), n. A proposition or device for securing peace, especially in the church. South.

4730

Irenics

I‐ren″ics (?), n.(Eccl.) That branch of Christian science which treats of the methods of securing unity among Christians or harmony and union among the churches; — called also I...

4731

Irestone

Ire″stone′ (?), n.(Mining) Any very hard rock.

4732

Irian

I″ri‐an (?), a. Of or pertaining to the iris. “Irian nerves.” Dunglison.

4733

Iricism

I″ri‐cism (?), n. Irishism. Jeffrey.

4734

Iridaceous

{ Ir′i‐da″ceous (?), I‐rid″e‐ous (?), } a. [From NL. Iris, Iridis, the Iris.] (Bot.) Pertaining to, or resembling, a large natural order of endogenous plants (Iridaceæ), which i...

4735

Iridal

I″ri‐dal (?; 277), a. [L. iris, iridis, rainbow. See Iris.] Of or pertaining to the iris or rainbow; prismatic; as, the iridal colors. Whewell.

4736

Iridectomy

Ir′i‐dec″to‐my (?), n. [Gr. �, �, iris + � cutting out; � out + τέμνειν to cut.] (Surg.) The act or process of cutting out a portion of the iris in order to form an artificial p...

4737

Iridescence

Ir′i‐des″cence (?), n. [See Iridescent.] Exhibition of colors like those of the rainbow; the quality or state of being iridescent; a prismatic play of color; as, the iridescence...

4738

Iridescent

Ir′i‐des″cent (?; 277), a. [L. iris, iridis, the rainbow: cf. F. iridescent.] Having colors like the rainbow; exhibiting a play of changeable colors; nacreous; prismatic; as, ir...

4739

Iridian

I‐rid″i‐an (?), a. Of or pertaining to the iris or rainbow.

4740

Iridiated

I‐rid″i‐a′ted (?), a. Iridescent.

4741

Iridic

I‐rid″ic (?), a. Of or pertaining to the iris of the eye.

4742

Iridic (2)

I‐rid″ic, a.(Chem.) Of or pertaining to iridium; — said specifically of those compounds in which iridium has a relatively high valence.

4743

Iridioscope

I‐rid″i‐o‐scope (?), n. [See Iris, and -scope.] A kind of ophthalmoscope.

4744

Iridious

I‐rid″i‐ous (ī̍‐rĭd″ĭ‐ŭs), a.(Chem.) Of or pertaining to iridium; — applied specifically to compounds in which iridium has a low valence.

4745

Iridium

I‐rid″i‐um (ī̍‐rĭd″ĭ‐ŭm), n. [NL., fr. L. iris, iridis, the rainbow. So called from the iridescence of some of its solutions. See Iris.] (Chem.) A rare metallic element, of the ...

4746

Iridize

Ir″i‐dize (?), v. t. [imp. & p. p.Iridized (?); p. pr. & vb. n.Iridizing (?).]1. To point or tip with iridium, as a gold pen.2. To make iridescent; as, to iridize glass.

4747

Iridoline

I‐rid″o‐line (?), n. [Iridescent + L. oleum oil.] (Chem.) A nitrogenous base C10H9N, extracted from coal-tar naphtha, as an oily liquid. It is a member of the quinoline series, ...

4748

Iridosmine

{ Ir′i‐dos″mine (?), Ir′i‐dos″mi‐um (?), } n. [Iridium + osmium.] (Min.) The native compound of iridium and osmium. It is found in flattened metallic grains of extreme hardness,...

4749

Iris

I″ris (?), n.; pl. E. Irises (#), L. Irides (#). [L. iris, iridis, the goddess, Gr. �, �, the rainbow, iris of the eye, the plant Iris. Cf. Orris.] 1. (Class. Myth.) The goddess...

4750

Iris (2)

I″ris, n.(Zoöl.) Inner circle of an oscillated color spot.

4751

Iris diaphragm

I″ris di″a‐phragm. An adjustable diaphragm, suggesting the iris of the eye in its action, for regulating the aperture of a lens, consisting of a number of thin pieces fastened t...

4752

Irisated

I″ris‐a′ted (?), a. [See Iris.] Exhibiting the prismatic colors; irised; iridescent. W. Phillips.