Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: Modern Latin
Origin: crustaceus, from Latin crusta; CRUST

crustacean

 noun
     
Related topics: Animals
crus‧ta‧cean [countable] technical
HBA an animal such as a lobster or a crab that has a hard outer shell and several pairs of legs, and usually lives in water
—crustacean adjective
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
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