blue crab

any of a genus (Callinectes) of crabs, esp. a blue-legged, edible swimming species (C. sapidus) of the Atlantic coast of North America

See blue crab in American Heritage Dictionary 4

noun
An edible, bluish swimming crab (Callinectes sapidus) that has a wide distribution along the Atlantic and Gulf coasts of North America.

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blue crab

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