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Medical Dictionary

crustacea

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noun plural crus·ta·cea \ˌkrəs-ˈtā-sh(ē-)ə\

Medical Definition of crustacea

  1. 1 capitalized :  a large class of mostly aquatic arthropods that have a chitinous or calcareous and chitinous exoskeleton, a pair of often much modified appendages on each segment, and two pairs of antennae and that include the lobsters, shrimps, crabs, wood lice, water fleas, and barnacles

  2. 2:  arthropods of the class Crustacea

crustacean \-shən\play adjective or noun



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