Talon

Part of speech: noun (n.)

1. The claw of a predaceous bird or animal, especially the claw of a bird of prey. Bacon.

2. One of certain small prominences on the hind part of the face of an elephant's tooth.

3. A kind of molding, concave at the bottom and convex at the top; -- usually called an ogee.

4. The shoulder of the bolt of a lock on which the key acts to shoot the bolt. Knight.