crab
1crab
noun, often attributive \ˈkrab\Definition of CRAB
1
plural crabs also crab : any of numerous chiefly marine broadly built decapod crustaceans: a : any of an infraorder (Brachyura) 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 b : any of various crustaceans of an infraorder (Anomura) resembling true crabs in the more or less reduced condition of the abdomen
2
capitalized : cancer 1
3
plural : infestation with crab lice
4
: the angular difference between an aircraft's course and the heading necessary to make that course in the presence of a crosswind
Origin of CRAB
Middle English crabbe, from Old English crabba; akin to Old High German krebiz crab and perhaps to Old English ceorfan to carve — more at carve
First Known Use: before 12th century
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