a. rare. [f. Gr. τριγλώχῑς, -ῑν- (f. τρι-, TRI- + γλωχίς, γλωχίν point of an arrow) + -ID2.] Having three points; tricuspid. Also Triglochin a.
1760. J. Lee, Introd. Bot., III. xviii. (1765), 213. Triglochid, three pointed.
1836–9. Todd’s Cycl. Anat., I. 581/1. This valve … receives the name of the … triglochin valve.
