swimming crab

swimming crab
any of numerous, chiefly marine crabs, esp. of the family Portunidae, having the legs adapted for swimming.

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 any member of the family Portunidae (order Decapoda of the class Crustacea, phylum Arthropoda). In these animals, the fifth (hindmost) pair of legs are flattened into paddles for swimming. The family includes the blue crab (Callinectes sapidus), an edible crab of the Atlantic coast of North America; the velvet crab, Portunus, of the Atlantic and Pacific oceans and the Mediterranean Sea (see photograph—>); and Neptunus of the Indian and Pacific oceans.

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Universalium. 2010.

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  • swimming crab — noun marine crab with some legs flattened and fringed for swimming • Hypernyms: ↑crab • Hyponyms: ↑English lady crab, ↑Portunus puber, ↑American lady crab, ↑lady crab, ↑calico crab, ↑ …   Useful english dictionary

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  • Swimming — Swim ming, a. 1. That swims; capable of swimming; adapted to, or used in, swimming; as, a swimming bird; a swimming motion. [1913 Webster] 2. Suffused with moisture; as, swimming eyes. [1913 Webster] {Swimming bell} (Zo[ o]l.), a nectocalyx. See… …   The Collaborative International Dictionary of English

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