crustacean

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noun crus·ta·cean \ˌkrə-ˈstā-shən\

Definition of crustacean

  1. :  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

Recent Examples of crustacean from the Web

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


CRUSTACEAN Defined for English Language Learners

crustacean

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noun

Definition of crustacean for English Language Learners

  • : a type of animal (such as a crab or lobster) that has several pairs of legs and a body made up of sections that are covered in a hard outer shell


CRUSTACEAN Defined for Kids

crustacean

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noun crus·ta·cean \ˌkrəs-ˈtā-shən\

Definition of crustacean for Students

  1. :  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



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