Defn: An amide containing three amido groups.

TRIAMINE
Tri*am"ine, n. Etym: [Pref. tri- + amine.] (Chem.)

Defn: An amine containing three amido groups.

TRIANDER
Tri"an`der, n. (Bot.)

Defn: Any one of the Triandria.

TRIANDRIA
Tri*an"dri*a, n. pl. Etym: [NL. See Tri-, and -androus.] (Bot.)

Defn: A Linnæan class of plants having three distinct and equal stamens.

TRIANDRIAN; TRIANDROUS
Tri*an"dri*an, Tri*an"drous, a. Etym: [Cf. F. triandre.] (Bot.)

Defn: Of or pertaining to the Triandria; having three distinct and equal stamens in the same flower.

TRIANGLE Tri"an`gle, n. Etym: [L. triangulum, fr. triangulus triangular; tri- (see Tri-) + angulus angle: cf. F. triangle. See Angle a corner.]