Crustacea (redirected from Crustaceans)

Crus`ta´ce`a    (kr?s-t?´sh?-?)

n. pl.

1.

(Zool.) One of the classes of the arthropods, including lobsters and crabs; - so called from the crustlike shell with which they are covered.

Thesaurus

Noun

1.

Crustacea - class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas class Crustacea Arthropoda, phylum Arthropoda - jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes crustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton Malacostraca, subclass Malacostraca - largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies order Stomatopoda, Stomatopoda - mantis shrimps Entomostraca, subclass Entomostraca - in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use Branchiopoda, subclass Branchiopoda - primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas Copepoda, subclass Copepoda - minute planktonic or parasitic crustaceans Ostracoda, subclass Ostracoda - seed shrimps Cirripedia, subclass Cirripedia - barnacles class - (biology) a taxonomic group containing one or more orders