Tri*cus"pid(?), a. [L. tricuspis, -idis; tri- (see Tri-) + cuspis a point: cf. F. tricuspide.] 1. Having three cusps, or points; tricuspidate; as, a tricuspid molar.
(Anat.) Of or pertaining to the tricuspid valves; as,
(Anat.), the valve, consisting of three triangular membranous flaps, at the opening of the right auricle into the right ventricle in the heart of most mammals; -- sometimes called the
tricuspid valves, each flap being regarded as a valve.
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Wed 19th December 2018