crustacean

1. Of or belonging to the class Crustacea (synset 302716896)
   same as: crustaceous

1. Any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton (synset 101977414)
   is a type of: arthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
   subtypes:

   • malacostracan crustacean - a major subclass of crustaceans
   • decapod, decapod crustacean - crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax
   • brachyuran - typical crabs
   • stomatopod, stomatopod crustacean - a kind of crustacean
   • branchiopod, branchiopod crustacean, branchiopodan - aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding
   • copepod, copepod crustacean - minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish
   • mussel shrimp, ostracod, seed shrimp - tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell
   • barnacle, cirriped, cirripede - marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces
   belongs to: class crustacea, crustacea - class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas
   has:

   • green gland - one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae
   • chela, claw, nipper, pincer - a grasping structure on the limb of a crustacean or other arthropods

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