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hermit crab

hermit crab

4 3.6
A small sea animal with a soft body that lives in empty shells for protection
  • noun
  • /ˈhɜːrmɪt kræb/
translation icon : cangrejo ermitaño
  • A hermit crab, startled by Sarah's shadow and her hand, scuttles into a protective niche between two green anemones.
  • a hermit crab as a pet
  • hermit crab's shell
  • terrestrial hermit crabs

I was like, I remember the pet hermit crab I got from the, I think it was like a County Fair.

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Examples

  • At the lip of the pool, the hermit crab claws its way out of the water and onto the rock.

    Fiction book (1994)
  • There was a hermit crab inside, and it pinched her ear.

    Blog text (29)
  • Sarah reaches for the hermit crab, careful to touch only the shell, not the tender body.

    Fiction book (1994)
  • Once we had six hermit crabs in our moat at the beach.

    Fiction book (1994)
  • A hermit crab hides in the rocky crevices awaiting the changing tide.

    Fiction book (2001)
  • Tiny hermit crabs scuttled in a moat we had dug and lined with rocks and shells.

    Fiction book (1994)
  • The hermit crab is known for living in the shells of other animals for protection.

  • At the beach, we found a hermit crab scuttling across the sand in its borrowed shell.

  • Children enjoy watching the hermit crab change shells as it grows.

How Big

Dungeness crab
  • US
1 5.1
blue crab
  • US
2 3.4
hermit crab
4 3.6

Surface Forms

hermit crab singular
hermit crabs plural

Morphology

hermit + crab

The meaning is directly built from 'hermit' (someone who lives in isolation or uses a shelter) + 'crab' (a crustacean): a crab that lives like a hermit in a shell. This metaphoric naming is straightforward and cross-linguistically common, so a B1 learner who knows both words can reliably infer the MWE meaning.

Etymology

The noun hermit crab comes from the animal's habit of living alone inside an empty shell, like a 'hermit' who lives alone in a small home. The crab hides its soft body in the shell for protection, so the name means a small crab that lives in other animals' shells.