/truy kus"pid/ , adj.
1. Also, tricuspidal . having three cusps or points, as a tooth. Cf. bicuspid .
2. Anat. of, pertaining to, or affecting the tricuspid valve.
n.
3. Anat. a tricuspid part, as a tooth.
[ 1660-70; tricuspid- (s. of tricuspis ) having three points. See TRI-, CUSPID ]