'Claw hammer' definitions:

Definition of 'claw hammer'

noun

A hammer with a cleft at one end for pulling nails [syn: carpenter's hammer, claw hammer, clawhammer]

From: GCIDE

Claw \Claw\ (kl[add]), n. [AS. clawu, cl[=a], cle['o]; akin to D. klaauw, G. klaue, Icel. kl[=o], Sw. & Dan. klo, and perh. to E. clew.]
1. A sharp, hooked nail, as of a beast or bird. [1913 Webster]
2. The whole foot of an animal armed with hooked nails; the pinchers of a lobster, crab, etc. [1913 Webster]
3. Anything resembling the claw of an animal, as the curved and forked end of a hammer for drawing nails. [1913 Webster]
4. (Bot.) A slender appendage or process, formed like a claw, as the base of petals of the pink. --Gray. [1913 Webster]
Claw hammer, a hammer with one end of the metallic head cleft for use in extracting nails, etc.
Claw hammer coat, a dress coat of the swallowtail pattern. [Slang]
Claw sickness, foot rot, a disease affecting sheep. [1913 Webster]