hermit crab

noun

: 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

Illustration of hermit crab

Examples of hermit crab in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Eventually our guide Shayne saw something far smaller than a turtle: a strawberry hermit crab poking its delicate claws out of a shell. Tim Chester, AFAR Media, 17 Apr. 2025 Unfortunately, hermit crabs can struggle to find homes due to the over-collection of shells. Kelli Bender, People.com, 27 Mar. 2025 Much as hermit crabs borrow shells, fancy case caterpillars craft elaborate homes with sand, bits of plant material and lichen. Elizabeth Weise, USA Today, 25 Apr. 2025 The dung heap is being dismantled by a scrum of hermit crabs. Kevin Gepford, Smithsonian Magazine, 15 Apr. 2025 See All Example Sentences for hermit crab

Word History

First Known Use

1735, in the meaning defined above

Time Traveler
The first known use of hermit crab was in 1735

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Cite this Entry

“Hermit crab.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hermit%20crab. Accessed 13 May. 2025.

Kids Definition

hermit crab

noun
: any of various small crabs that occupy empty mollusk shells

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