Medical Dictionary


noun pl crus·ta·cea \ˌkrəs-ˈtā-sh(ē-)ə\

Definition of CRUSTACEA

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
:  arthropods of the class Crustacea
crus·ta·cean \-shən\ adjective or noun
April 01, 2015
diapause Hear it
a period of physiological dormancy
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears