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.
[1913 Webster]
2. To make triangular, or three-cornered.
[1913 Webster]