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An organ or part, especially a tooth, having three cusps.
adj. also tri·cus·pi·dal (-pĭ-dəl) or tri·cus·pi·date (-pĭ-dāt′)
1. Having three cusps, especially a molar tooth.
2. Of or relating to the tricuspid valve.

[From Latin tricuspis, tricuspid-, having three points : tri-, tri- + cuspis, point.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.tricuspidate - having three cusps or points (especially a molar tooth)tricuspidate - having three cusps or points (especially a molar tooth); "tricuspid molar"; "tricuspid valve"
angulate, angular - having angles or an angular shape
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References in periodicals archive ?
Abdomen: Tergal plate longer than wide, the longitudinal ridge of thorax continues along mtg III-VI; lateral sclerites with punctured oval depressions; deltg II + III not fused, lateral margins of deltg II-VII reflexed, their posterior margins raised, pilose and with a distinctly posterolaterally projecting tubercle; metapleural scent gland canais straight and directed upward and visible from above as a split oval elevation; mtg VII with a median elevation and 2 vertical projections on posterior margin; tergite VIII bilobate, visible tergites IX and X tricuspidate.
5 cm Petiole length 44 cm 0-1 cm Apex of pinnae Incised to Tricuspidate truncate or bicuspidate Apical pinnae connate for 2 cm 5-7.