Noun crustacea has 1 sense
  1. Crustacea, class Crustacea - class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas
    --1 is a kind of class
    --1 is a member of Arthropoda, phylum Arthropoda
    --1 has members:
     crustacean; Malacostraca, subclass Malacostraca; Stomatopoda, order Stomatopoda; Entomostraca, subclass Entomostraca; Branchiopoda, subclass Branchiopoda; Copepoda, subclass Copepoda; Ostracoda, subclass Ostracoda; Cirripedia, subclass Cirripedia
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