Tri·cus·pid a.
1. Having three cusps, or points; tricuspidate; as, a tricuspid molar.
2. Anat. Of or pertaining to the tricuspid valves; as, tricuspid obstruction.
Tricuspid valve 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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