1. (noun) a thin triangular flap of a heart valve

• leaflet

1. (noun) point formed by two intersecting arcs (as from the intrados of a Gothic arch)

• point

2. (noun) a thin triangular flap of a heart valve

• flap

3. (noun) small elevation on the grinding surface of a tooth

• peak
• point
• tip

1. (noun) point formed by two intersecting arcs (as from the intrados of a Gothic arch)

• cuspate
• cuspated
• cusped
• cuspidal
• cuspidate
• cuspidated

2. (noun) a thin triangular flap of a heart valve

• leaf