Webster's Dictionary 1913

4618

Triakisoctahedron

Tri″a‐kis‐oc′ta‐he″dron (?), n. [Gr. � thrice + E. octahedron.] (Crystalloq.) A trigonal trisoctahedron.

4619

Trial

Tri″al (?), n. [From Try.] 1. The act of trying or testing in any manner. Specifically: —(a) Any effort or exertion of strength for the purpose of ascertaining what can be done ...

4620

Trial balance

Tri″al bal′ance. (Bookkeeping) The testing of a ledger to discover whether the debits and credits balance, by finding whether the sum of the personal credits increased by the di...

4621

Triality

Tri‐al″i‐ty (?), n. [L. tres, tria, three.] Three united; state of being three. H. Wharton.

4622

Trialogue

Tri″a‐logue, n. [LL. trialogus; tri- (see Tri-) + -logus as, in L. dialogus, E. dialogue.] A discourse or colloquy by three persons.

4623

Triamide

Tri‐am″ide (?), n. [tri- + amine.] (Chem.) An amide containing three amido groups.

4624

Triamine

Tri‐am″ine (?), n. [Pref. tri- + amine.] (Chem.) An amine containing three amido groups.

4625

Triander

Tri″an′der (?), n.(Bot.) Any one of the Triandria.

4626

Triandria

‖Tri‐an″dri‐a (?), n. pl. [NL. See Tri-, and -androus.] (Bot.) A Linnæan class of plants having three distinct and equal stamens.

4627

Triandrian

{ Tri‐an″dri‐an (?), Tri‐an″drous (?), } a. [Cf. F. triandre.] (Bot.) Of or pertaining to the Triandria; having three distinct and equal stamens in the same flower.

4628

Triangle

Tri″an′gle (?), n. [L. triangulum, fr. triangulus triangular; tri- (see Tri-) + angulus angle: cf. F. triangle. See Angle a corner.] 1. (Geom.) A figure bounded by three lines, ...

4629

Triangled

Tri″an′gled (?), a. Having three angles; triangular.

4630

Triangular

Tri‐an″gu‐lar (?), a. [L. triangularis: cf. F. triangulaire.] 1. Having three angles; having the form of a triangle.2. (Bot.) Oblong or elongated, and having three lateral angle...

4631

Triangulares

‖Tri‐an′gu‐la″res (?), n. pl.(Zoöl.) The triangular, or maioid, crabs. See Illust. under Maioid, and Illust. of Spider crab, under Spider.

4632

Triangularity

Tri‐an′gu‐lar″i‐ty (?), n. The quality or state of being triangular. Bolingbroke.

4633

Triangularly

Tri‐an″gu‐lar‐ly (?), adv. In a triangular manner; in the form of a triangle. Dampier.

4634

Triangulate

Tri‐an″gu‐late (?), v. t. [imp. & p. p.Triangulated (?); p. pr. & vb. n.Triangulating.] 1. To divide into triangles; specifically, to survey by means of a series of triangles pr...

4635

Triangulation

Tri‐an′gu‐la″tion (?), n. [Cf. F. triangulation.] (Surv.) The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometri...

4636

Triarchy

Tri″ar‐chy (?), n.; pl.Triarchies (#). [Gr. �; � (see Tri-) + � to rule.] Government by three persons; a triumvirate; also, a country under three rulers. Holland.

4637

Triarian

Tri‐a″ri‐an (?), a. [L. triarii, pl., a class of Roman soldiers who formed the third rank from the front, fr. tres, tria, three.] Occupying the third post or rank. Cowley.

4638

Triarticulate

Tri′ar‐tic″u‐late (?), a. [Pref. tri- + articulate.] (Zoöl.) Having three joints.

4639

Trias

Tri″as (?), n. [L., triad. See Triad.] (Geol.) The formation situated between the Permian and Lias, and so named by the Germans, because consisting of three series of strata, wh...

4640

Triassic

Tri‐as″sic (?), a.(Geol.) Of the age of, or pertaining to, the Trias. — n. The Triassic formation.

4641

Triatic

Tri‐at″ic (?), a.(Naut.) A term used in the phrase triatic stay. See under Stay.

4642

Triatomic

Tri′a‐tom″ic (?), a. [Pref. tri- + atomic.] (Chem.) (a) Having three atoms; — said of certain elements or radicals. (b) Having a valence of three; trivalent; sometimes, in a spe...

4643

Tribal

Trib″al (?), a. Of or pertaining to a tribe or tribes; as, a tribal scepter. Bp. Warburton.

4644

Tribalism

Trib″al‐ism (?), n. The state of existing in tribes; also, tribal feeling; tribal prejudice or exclusiveness; tribal peculiarities or characteristics.