a. [ L. triangularis: cf. F. triangulaire. ]
Triangular compasses,
Triangular crab (Zool.),
Triangular numbers (Math.),
‖n. pl. [ L. ] (Zool.) The triangular, or maioid, crabs. See Illust. under Maioid, and Illust. of
n. The quality or state of being triangular. Bolingbroke. [ 1913 Webster ]
adv. In a triangular manner; in the form of a triangle. Dampier. [ 1913 Webster ]