crus·​ta·​cean | \ ˌkrə-ˈstā-shən How to pronounce crustacean (audio) \

Definition of crustacean

: any of a large class (Crustacea) of mostly aquatic mandibulate 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, shrimp, crabs, wood lice, water fleas, and barnacles

Other Words from crustacean

crustacean adjective

Examples of crustacean in a Sentence

Recent Examples on the Web Steak Diane, Haim's cocktail-swilling, crustacean-loving alter ego. Taylore Glynn, Allure, 7 Aug. 2022 Schiaparelli’s lobster dress, which featured a painting of the crustacean by Salvador Dali on the silk skirt. Elise Taylor, Vogue, 14 July 2022 Plentiful, delicious Gulf gems such as shrimp, which serves as the state crustacean. Megha Mcswain, Chron, 20 May 2022 Where seafood is involved, the seas themselves are different, as are the denizens of those seas, whether fin fish, shellfish or crustacean. San Diego Union-Tribune, 27 Apr. 2022 This has put at risk a historic Alaska fishery that during two boom years in the early 1990s tallied more than 300 million pounds of the green-eyed crustacean with spindly legs, hauls even greater than the highest years of the king crab harvests. Anchorage Daily News, 4 Apr. 2022 The crustacean’s presence opens up many new questions. New York Times, 11 Mar. 2022 But a closer look revealed the crustacean was not a crab but a deep-sea squat lobster in the genus Munidopsis, Dr. Rodríguez Flores said. New York Times, 11 Mar. 2022 Governor Jay Inslee issued an emergency order on Wednesday that will allow the state's department of fish and wildlife to eradicate the crustacean or prevent it from permanently establishing itself. Katie Hunt, CNN, 20 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crustacean.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of crustacean

1835, in the meaning defined above

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The first known use of crustacean was in 1835

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Last Updated

12 Aug 2022

Cite this Entry

“Crustacean.” Dictionary, Merriam-Webster, Accessed 18 Aug. 2022.

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More Definitions for crustacean


crus·​ta·​cean | \ ˌkrəs-ˈtā-shən How to pronounce crustacean (audio) \

Kids Definition of crustacean

: any of a large group of mostly water animals (as crabs, lobsters, and shrimps) with a body made of segments, a tough outer shell, two pairs of antennae, and limbs that are jointed

More from Merriam-Webster on crustacean

Nglish: Translation of crustacean for Spanish Speakers

Britannica English: Translation of crustacean for Arabic Speakers Encyclopedia article about crustacean


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