Defn: In a triangular manner; in the form of a triangle. Dampier.

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 properly laid down and measured.

2. To make triangular, or three-cornered.

TRIANGULATION
Tri*an`gu*la"tion, n. Etym: [Cf. F. triangulation.] (Surv.)

Defn: The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometrical survey; the operation of measuring the elements necessary to determine the triangles into which the country to be surveyed is supposed to be divided, and thus to fix the positions and distances of the several points connected by them.

TRIARCHY
Tri"ar*chy, n.; pl. Triarchies. Etym: [Gr. Tri-) +

Defn: Government by three persons; a triumvirate; also, a country under three rulers. Holland.

TRIARIAN Tri*a"ri*an, a. Etym: [L. triarii, pl., a class of Roman soldiers who formed the third rank from the front, fr. tres, tria, three.]

Defn: Occupying the third post or rank. [Obs.] Cowley.