crustacean - definition, thesaurus and related words from WordNet-Online

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Adjective crustacean has 1 sense

crustaceous, crustacean - of or belonging to the class Crustacea

Noun crustacean has 1 sense

crustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
--₁ is a kind of arthropod
--₁ is a member of Crustacea, class Crustacea
--₁ has parts: green gland; claw, chela, nipper, pincer
--₁ has particulars:

malacostracan crustacean; decapod crustacean, decapod; brachyuran; stomatopod, stomatopod crustacean; branchiopod crustacean, branchiopod, branchiopodan; copepod, copepod crustacean; seed shrimp, mussel shrimp, ostracod; barnacle, cerriped, cerripede