sea mouse

noun

Definition of sea mouse

: any of various large broad marine polychaete worms (especially genus Aphrodite) covered with hairlike setae

First Known Use of sea mouse

circa 1520, in the meaning defined above

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The first known use of sea mouse was circa 1520

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Cite this Entry

“Sea mouse.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/sea%20mouse. Accessed 11 December 2019.

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