crustacea

play
plural noun crus·ta·cea \ˌkrə-ˈstā-sh(ē-)ə\

Definition of crustacea

  1. :  arthropods that are crustaceans

Origin and Etymology of crustacea

New Latin, group name, from neuter plural of crustaceus


First Known Use: 1814


Medical Dictionary

crustacea

play
noun plural crus·ta·cea \ˌkrəs-ˈtā-sh(ē-)ə\

Medical Definition of crustacea

  1. 1 capitalized :  a large class of mostly aquatic 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, shrimps, crabs, wood lice, water fleas, and barnacles

  2. 2:  arthropods of the class Crustacea

crustacean

\-shən\play adjective or noun

Seen and Heard

What made you want to look up crustacea? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a person who is a bore or nuisance

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • peter-bruegel-tower-of-babel-painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!