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
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.
Shrimp and mussels are a must for her seafood paella, though the queen of home cooking has also used lobster in the past. Sophia Beams, Better Homes & Gardens, 3 July 2026 The standout dinner order is the seafood paella, which arrives sizzling in a hot pan with shrimp, calamari, mussels, market fish, chorizo, and crispy bomba rice. Kaila Yu, Forbes.com, 30 June 2026 Barnacles, mussels, clams, algae and other warm-seawater-dwelling fauna and flora have latched onto oil tankers hundreds of massive oil tankers anchored in the Persian Gulf over the past several months. David Goldman, CNN Money, 23 June 2026 Tiny mineral deposits preserved within the gills appear to have acted as calcium stores, helping developing larvae build their shells — a process similar to what scientists observe in living freshwater mussels today. Ashley Vega, PEOPLE, 23 June 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

Browse Nearby Words

Cite this Entry

“Mussel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mussel. Accessed 7 Jul. 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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