Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

hermit crab

noun

Simple Definition of hermit crab

  • : a type of crab that lives in the empty shell of another animal (such as a snail)

Full Definition of hermit crab

  1. :  any of numerous chiefly marine small decapod crustaceans (especially families Diogenidae, Paguridae, and Parapaguridae) having soft asymmetrical abdomens and occupying the empty shells of gastropods

Illustration of hermit crab

1735

First Known Use of hermit crab

1735


HERMIT CRAB Defined for Kids

hermit crab

noun

Definition of hermit crab

  1. :  a small crab that lives in the empty shells of mollusks (as snails)




Learn More about hermit crab


Seen and Heard

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

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift kittly-benders pince-nez duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ