DictionaryhermitShell-dwelling crab
noun

hermit

a small crab that lives in another animal's empty shell

The hermit crab carries an empty snail shell on its back.

Etymology

The crab’s name likens its life inside a borrowed shell to a hermit’s retreat. The comparison concerns its sheltered dwelling rather than a human religious practice.

More examples

  • As it grows, a hermit crab needs a larger shell.
  • We spot two hermit crabs in a shallow tide pool.
  • The tiny hermit pulls its legs inside its borrowed shell.

Forms

hermit · hermits

Similar words

hermit crab
The usual full name for the same shell-dwelling animal.