Synonym for tricuspid ... 1. Having three cusps, or points; tricuspidate; as, a tricuspid molar. ... 2. <anatomy> Of or pertaining to the tricuspid valves; as, tricuspid obstruction. ... <anatomy> Tricuspid valve, the valve, consisting of three triangular membranous flaps, at the opening of the right auricle into the right ventricle in ... Found on http://www.encyclo.co.uk/local/20973