crustacea
plural noun
crus·ta·cea ˌkrə-ˈstā-sh(ē-)ə 
: arthropods that are crustaceans
Example Sentences
Recent Examples on the Web There’s primitive pleasure in devouring a complete crustacea, exoskeleton and all. 
Matt Wake | Mwake@al.com, al, 18 Aug. 2021
Matt Wake | Mwake@al.com, al, 18 Aug. 2021 Word History
Etymology
New Latin, group name, from neuter plural of crustaceus
First Known Use
1814, in the meaning defined above
Medical Definition
crustacea
noun plural
crus·ta·cea ˌkrəs-ˈtā-sh(ē-)ə
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