1
: a marine bivalve mollusk (especially genus Mytilus) usually having a dark elongated shell
2
: a freshwater bivalve mollusk (as of Unio, Anodonta, or related genera) that is especially abundant in rivers of the central U.S. and has a shell lined with mother-of-pearl

Examples of mussel in a Sentence

Recent Examples on the Web
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Health officials also offer cooking instructions for clams, mussels and other shellfish. ABC News, 9 Aug. 2026 Mussels Like oysters, mussels are a source of long-chain omega-3 fatty acids. Heather Jones, Verywell Health, 6 Aug. 2026 The restaurant will serve crispy tamarind wings, coconut mussels, rice flour crepes and many varieties of pho, from flank and brisket to rare eye round. Phillip Valys, Sun Sentinel, 5 Aug. 2026 Not surprisingly, seafood is central to the local cuisine, with such dishes as sole sablaise, a local fish; cuttlefish stew; and mouclade, a mussel dish, among the specialties. Catherine Sabino, Forbes.com, 29 July 2026 See All Example Sentences for mussel

Word History

Etymology

Middle English muscle, from Old English muscelle, from Vulgar Latin *muscula, from Latin musculus muscle, mussel

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of mussel was before the 12th century

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Cite this Entry

“Mussel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mussel. Accessed 15 Aug. 2026.

Kids Definition

1
: any of various edible saltwater mollusks with a long dark hinged double shell
2
: any of numerous freshwater mollusks of rivers of the central U.S. whose hinged double shells are lined with mother-of-pearl

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