(kŭsp)

[L. cuspis, point]

1. A rounded or cone-shaped point on the crown of a tooth.
2. One of the leaflike divisions or parts of the valves of the heart.
cuspidate (kŭs′pĭ-dāt″), adj.
SEE: bicuspid valve;
SEE: semilunar cusp;
SEE: tricuspid valve

Carabelli cusp

SEE: Carabelli cusp

plunger cusp

A cusp of a tooth that tends to forcibly wedge food into interproximal areas, causing an impaction. Cusp points should be rounded, shortened, or reduced with a dental drill.

semilunar cusp

One of the leaflets of the aortic valve between the left ventricle and the aorta or of the pulmonary valve between the right ventricle and the pulmonary artery.