crustacean

noun
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

Keep scrolling for more

Other Words from crustacean

crustacean adjective

Examples of crustacean in a Sentence

Recent Examples on the Web

Race attendees can place bets on the Parsons' lobster contender of their choice and watch as the crustaceans crawl through a Plexiglas tank to the finish line. chicagotribune.com, "6 peculiar and patriotic Fourth of July celebrations across the country," 1 July 2019 Wilcockson explains that scientists hypothesized the crustaceans use their antennae to navigate via the sun, which has been shown to be the case in monarch butterflies. Douglas Main, National Geographic, "Why oysters close on the full moon—and more odd lunar effects on animals," 17 Apr. 2019 Shrimp, crab and fish can move to other areas, but animals that live on the sea floor like certain crustaceans and worms cannot, stressing the food web and threatening the jobs that depend on these waters. Jen Christensen, CNN, "The Gulf could see one of the largest dead zones in history this year," 10 June 2019 It's even got little legs that could stand up on a table like a crustacean. David Grossman, Popular Mechanics, "Cute Crab Multitool Is Perfect for Your Picnic," 16 Nov. 2016 The researchers, from Cornell University, studied simpler and more common animals like frogs and small crustaceans that perform a breaching maneuver. Avery Thompson, Popular Mechanics, "Scientists Build Underwater Jumping Robot," 23 Nov. 2018 Silent killers carried by the currents, wrapping themselves around reefs and claiming the lives of millions of marine creatures great and small, from sponges and tiny crustaceans to dolphins, sharks and whales. Washington Post, "Cleaning the seabed: Divers halt the carnage of ‘ghost’ nets," 8 June 2018 The Adélie penguins that live across the coast of Antarctica and nearby islands love to eat tiny pinkish crustaceans called krill. Brian Resnick, Vox, "You can join the scientific quest to track penguin poop from space. It could help protect the species.," 12 Dec. 2018 The snailfish diet includes of amphipods, tiny crustaceans which are known to hold microplastics. David Grossman, Popular Mechanics, "Scientists Discover Trippy New Translucent Fish at the Bottom of the Ocean," 10 Sep. 2018

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.

See More

First Known Use of crustacean

1835, in the meaning defined above

Keep scrolling for more

Learn More about crustacean

Dictionary Entries near crustacean

Crusoe

crust

crustacea

crustacean

crustaceology

crustaceous

crustation

Statistics for crustacean

Last Updated

11 Jul 2019

Look-up Popularity

Time Traveler for crustacean

The first known use of crustacean was in 1835

See more words from the same year

Keep scrolling for more

More Definitions for crustacean

crustacean

noun

English Language Learners Definition of crustacean

technical : 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

noun
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

Keep scrolling for more

More from Merriam-Webster on crustacean

Rhyming Dictionary: Words that rhyme with crustacean

Spanish Central: Translation of crustacean

Nglish: Translation of crustacean for Spanish Speakers

Britannica English: Translation of crustacean for Arabic Speakers

Britannica.com: Encyclopedia article about crustacean

Comments on crustacean

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

WORD OF THE DAY

characterized by aphorism

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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!