crab

crab

noun \ˈkrab\

Definition of CRAB

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