Cusp
01
尖点, 顶点
the point or curve formed by the intersection of two arcs or curves, commonly seen in the tracery of Gothic architecture
02
牙尖, 齿突
small elevation on the grinding surface of a tooth
03
瓣, 瓣膜
a thin triangular flap of a heart valve
尖点, 顶点
牙尖, 齿突
瓣, 瓣膜