crustaceans
nounmasculine/kɾuʃˈtasjuʃ/medium
crus·tá·ce·os
Definition
A class of arthropod animals, typically aquatic, with segmented bodies and a hard exoskeleton.
Lobsters and crabs are examples of crustaceans.
The study of crustaceans is called carcinology.
Common collocations
crustacean shellmarine crustaceans
Etymology
Do latim 'crustaceus', de 'crusta' (casca, crosta).