oyster crab

noun

Definition of oyster crab

: a tiny crab (Pinnotheres ostreum) that lives as a commensal in the gill cavity of the oyster

First Known Use of oyster crab

1756, in the meaning defined above

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The first known use of oyster crab was in 1756

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Dictionary Entries Near oyster crab

oystercatcher

oyster crab

oyster cracker

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Cite this Entry

“Oyster crab.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oyster%20crab. Accessed 17 Jan. 2022.

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More from Merriam-Webster on oyster crab

Britannica.com: Encyclopedia article about oyster crab

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