hermit crab

noun

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 English Language Learners

hermit crab

noun

Definition of hermit crab for English Language Learners

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


HERMIT CRAB Defined for Kids

hermit crab

noun

Definition of hermit crab for Students

  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).

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

to link together in a series or chain

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • winning-words-from-the-national-spelling-bee-logo
  • Which is the correct spelling of the winning word from 1988?
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!