Having a cusp or sharp point: spec. (a) Botany (of leaves) ending in a rigid point or spine; (b) applied to the canine teeth, each of which ends…

Anatomy. Pertaining to the crown (of a tooth).

(esp. of a tooth) having more than two cusps.

(originally of a tooth, later also of a heart valve) having four cusps or points; cf. tricuspid, adj.

= multicuspid adj.

(of a tooth) quadricuspid, quadritubercular.

Of teeth: = cuspidate, adj.

placed or performed within the crown of a tooth.