blue crab
noun
Definition of blue crab
: a large bluish-green edible crab (Callinectes sapidus of the family Portunidae) of the Atlantic and Gulf coasts
From the M-W Editors
Illustration of blue crab
1763
First Known Use of blue crab
1763
Learn More about blue crab
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Britannica.com: Encyclopedia article about blue crab
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