Main Entry: crab

Pronunciation: \ˈkrab\

Function: noun

1 : any of a tribe (Brachyura) of chiefly marine crustaceans with a short broad usually flattened carapace, a small abdomen that curls forward beneath the body, short antennae, and the anterior pair of limbs modified as grasping pincers
2 crabs pl : infestation with crab lice