First Known Use: 1814
Dictionary
crustacea
noun plural crus·ta·cea \ˌkrəs-ˈtā-sh(ē-)ə\
Definition of CRUSTACEA
: arthropods that are crustaceans
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Origin of CRUSTACEA
New Latin, group name, from neuter plural of crustaceus
Medical Dictionary
crustacea
noun plural crus·ta·cea \ˌkrəs-ˈtā-sh(ē-)ə\
Medical Definition of CRUSTACEA
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
: arthropods of the class Crustacea
—crus·ta·cean \-shən\ adjective or noun
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