crustacean

noun

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

Examples of crustacean in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The eight others are soybeans, fish, crustacean shellfish, wheat, milk, eggs, peanuts and tree nuts. Thomas G. Moukawsher, Newsweek, 5 Nov. 2024 Arthropods are invertebrate animals that today include insects, spiders, crustaceans, centipedes and millipedes—and Lomankus edgecombei belonged to an extinct subgroup of these creatures called megacheirans. Margherita Bassi, Smithsonian Magazine, 31 Oct. 2024 The deep-water species belongs to a group of animals known as arthropods—an incredibly diverse group of invertebrates with jointed limbs and a hard shell known as an exoskeleton, which includes arachnids, insects and crustaceans, as well as extinct animals like trilobites. Nina Turner, Newsweek, 29 Oct. 2024 Burrows are also known among birds, crustaceans, centipedes and millipedes, and certain vertebrates like alligators and lizards. Emilie Le Beau Lucchesi, Discover Magazine, 24 Oct. 2024 See all Example Sentences for crustacean 

Word History

First Known Use

1835, in the meaning defined above

Time Traveler
The first known use of crustacean was in 1835

Dictionary Entries Near crustacean

Cite this Entry

“Crustacean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crustacean. Accessed 22 Nov. 2024.

Kids Definition

crustacean

noun
crus·​ta·​cean ˌkrəs-ˈtā-shən How to pronounce crustacean (audio)
: any of a large class of mostly water-dwelling arthropods (as lobsters, shrimps, crabs, wood lice, water fleas, and barnacles) having an exoskeleton of chitin or chitin and a compound of calcium
crustacean adjective

More from Merriam-Webster on crustacean

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