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crustacean

[ kruh-stey-shuh n ]
/ krʌˈsteɪ ʃən /
|
SEE MORE SYNONYMS FOR crustacean ON THESAURUS.COM

noun

any chiefly aquatic arthropod of the class Crustacea, typically having the body covered with a hard shell or crust, including the lobsters, shrimps, crabs, barnacles, and wood lice.

adjective

belonging or pertaining to the crustaceans.

RELATED WORDS

shellfish

Nearby words

crushproof, crusie, crusoe, crust, crustacea, crustacean, crustaceous, crustal, crustal plate, crustation, crusted

Origin of crustacean

1825–35; < New Latin Crustace(a) (neuter plural) hard-shelled ones (see crust, -acea) + -an
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for crustacean

British Dictionary definitions for crustacean

crustacean

/ (krʌˈsteɪʃən) /

noun

any arthropod of the mainly aquatic class Crustacea, typically having a carapace hardened with lime and including the lobsters, crabs, shrimps, woodlice, barnacles, copepods, and water fleas

adjective Also: crustaceous

of, relating to, or belonging to the Crustacea

Word Origin for crustacean

C19: from New Latin crūstāceus hard-shelled, from Latin crūsta shell, crust
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for crustacean

crustacean


n.

1835, from Crustacea the class name. As an adjective, 1858 (earlier was crustaceous, 1640s).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for crustacean

crustacean

[ krŭ-stāshən ]

Any of various widespread arthropods of the class Crustacea that live mostly in water and have a hard shell, a segmented body, and jointed appendages. Crustaceans include crabs, lobsters, shrimp, barnacles, and copepods.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for crustacean

crustacean

[ (kru-stay-shuhn) ]

A class of arthropods with shells.

Note

Crabs, lobsters, shrimp, and crayfish are crustaceans.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.