Webster's Dictionary 1913

1675

Tetradynamia

‖Tet′ra‐dy‐na″mi‐a (?), n. pl. [NL., fr. Gr. τέτρα- (see Tetra-) + � power.] (Bot.) A Linnæan class of plants having six stamens, four of which are longer than the others.

1676

Tetradynamian

Tet′ra‐dy‐na″mi‐an (?), n.(Bot.) A plant of the order Tetradynamia.

1677

Tetradynamian (2)

{ Tet′ra‐dy‐na″mi‐an (?), Tet′ra‐dyn″a‐mous (?), } a.(Bot.) Belonging to the order Tetradynamia; having six stamens, four of which are uniformly longer than the others.

1678

Tetragon

Tet″ra‐gon (?), n. [L. tetragonum, Gr. τετράγωνον; τέτρα- (see Tetra-) + γωνία corner, angle: cf. F. tétragone.] 1. (Geom.) A plane figure having four sides and angles; a quadra...

1679

Tetragonal

Te‐trag″o‐nal (?), a. 1. (Geom.) Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal ...

1680

Tetragrammaton

‖Tet′ra‐gram″ma‐ton (?), n. [NL., fr. Gr. �; τέτρα- (see Tetra-) + � a letter.] The mystic number four, which was often symbolized to represent the Deity, whose name was express...

1681

Tetragynia

‖Tet′ra‐gyn″i‐a (?), n. pl. [NL., fr. Gr. τέτρα- (see Tetra-) + γυνή a woman, female.] (Bot.) A Linnæan order of plants having four styles.

1682

Tetragynian

{ Tet′ra‐gyn″i‐an (?), Te‐trag″y‐nous (?), } a.(Bot.) Belonging to the order Tetragynia; having four styles.

1683

Tetrahedral

Tet′ra‐he″dral (?), a. [See Tetrahedron.] 1. Having, or composed of, four sides.2. (Crystallog.) (a) Having the form of the regular tetrahedron. (b) Pertaining or related to a t...

1684

Tetrahedrally

Tet′ra‐he″dral‐ly, adv. In a tetrahedral manner.

1685

Tetrahedrite

Tet′ra‐he″drite (?), n. [So called because the crystals of the species are commonly tetrahedrons.] (Min.) A sulphide of antimony and copper, with small quantities of other metal...

1686

Tetrahedron

Tet′ra‐he″dron (?), n. [Tetra- + Gr. � seat, base, fr. � to sit.] (Geom.) A solid figure inclosed or bounded by four triangles.☞ In crystallography, the regular tetrahedron is r...

1687

Tetrahexahedral

Tet′ra‐hex′a‐he″dral (?), a.(Crystallog.) Pertaining to a tetrahexahedron.

1688

Tetrahexahedron

Tet′ra‐hex′a‐he″dron (?), n. [Tetra- + hexahedron.] (Crystallog.) A solid in the isometric system, bounded by twenty-four equal triangular faces, four corresponding to each face...

1689

Tetrakishexahedron

Tet′ra‐kis‐hex′a‐he″dron (?), n. [Gr. � four times + E. hexahedron.] (Crystallog.) A tetrahexahedron.

1690

Tetrakosane

Tet″ra‐ko‐sane′ (?), n. [Tetra- + Gr. � twenty.] (Chem.) A hydrocarbon, C24H50, resembling paraffin, and like it belonging to the marsh-gas series; — so called from having twent...

1691

Tetralogy

Te‐tral″o‐gy (?), n. [Gr. �; τέτρα- (see Tetra-) + � a speech, discourse: cf. F. tétralogie.] (Gr. Drama) A group or series of four dramatic pieces, three tragedies and one saty...

1692

Tetramera

‖Te‐tram″e‐ra (?), n. pl. [NL. See Tetramerous.] (Zoöl.) A division of Coleoptera having, apparently, only four tarsal joints, one joint being rudimentary.

1693

Tetramerous

Te‐tram″er‐ous (?), a. [Tetra- + Gr. � part.] 1. (Bot.) Having the parts arranged in sets of four; as, a tetramerous flower.2. (Zoöl.) Having four joints in each of the tarsi; —...

1694

Tetrameter

Te‐tram″e‐ter (?), n. [L. tetrametrus, Gr. �; τέτρα- (see Tetra-) + � a measure: cf. F. tétramètre.] (GR. & Latin Pros.) A verse or line consisting of four measures, that is, in...

1695

Tetramethylene

Tet′ra‐meth″yl‐ene (?), n. [Tetra- + methylene.] (Chem.) (a) A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or deriva...

1696

Tetramorph

Tet″ra‐morph (?), n. [Tetra- + Gr. � form, figure: cf. Gr. � fourfold.] (Christian Art) The union of the four attributes of the Evangelists in one figure, which is represented a...

1697

Tetrandria

‖Te‐tran″dri‐a (?), n. pl. [NL., from Gr. τέτρα- (see Tetra-) + �, �, a man, male.] (Bot.) A Linnæan class of plants having four stamens.

1698

Tetrandrian

{ Te‐tran″dri‐an (?), Te‐tran″drous (?), } a.(Bot.) Belonging to the class Tetrandria.

1699

Tetraneumona

‖Tet′ra‐neu″mo‐na (?), n. pl. [NL. See Tetra-, and Pneumo-.] (Zoöl.) A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bi...

1700

Tetraonid

Te‐tra″o‐nid (?), n. [L. tetrao a heath cock, grouse, Gr. �: cf. F. tétraonide.] (Zoöl.) A bird belonging to the tribe of which the genus Tetrao is the type, as the grouse, part...

1701

Tetrapetalous

Tet′ra‐pet″al‐ous (?), a. [Tetra- + petal.] (Bot.) Containing four distinct petals, or flower leaves; as, a tetrapetalous corolla.