Claw n.
  1. A sharp, hooked nail, as of a beast or bird.
  2. The whole foot of an animal armed with hooked nails; the pinchers of a lobster, crab, etc.
  3. Anything resembling the claw of an animal, as the curved and forked end of a hammer for drawing nails.
  4. Bot. A slender appendage or process, formed like a claw, as the base of petals of the pink.
  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.