Having three cusps or points (especially a molar tooth):
— Tricuspid molar.
— Tricuspid valve.

synonym: tricuspidate.

Roget 94: trifid; trisected etc. v.; tripartite, trichotomous^†, trisulcate^†.    Triadelphous^†, triangular, tricuspid, tricapsular^†, tridental^†, tridentate, tridentiferous^†, trifoliate, trifurcate, trigonal^†, trigrammic^†, trigrammatic^†, tripetalous^†, tripodal, tripodic^†, triquetral^†, triquetrous^†.    ... show more