n. The claw of a predaceous bird or animal, especially the claw of a bird of prey. (Zool.) One of certain small prominences on the hind part of the face of an elephant's tooth. (Arch.) A kind of molding, concave at the bottom and convex at the top; - usually called an ogee. When the concave part is at the top, it is called an inverted talon. The shoulder of the bolt of a lock on which the key acts to shoot the bolt.