mollusk

noun

mol·​lusk ˈmä-ləsk How to pronounce mollusk (audio)
variants or mollusc
: any of a large phylum (Mollusca) of invertebrate animals (such as snails, clams, or squids) with a soft unsegmented body usually enclosed in a calcareous shell
broadly : shellfish
molluscan adjective
or less commonly molluskan

Examples of mollusk 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.
Scientists suggest the Earth might host up to 200,000 species of mollusks. Margherita Bassi, Smithsonian Magazine, 13 Jan. 2025 Gastropods are a class of mollusks that inhabit a wide variety of habitats around the world. Irene Wright, Miami Herald, 6 Jan. 2025 Modern mollusks vary widely in form and size, including everything from giant squids to itty-bitty snails. Molly Herring, science.org, 2 Aug. 2024 The first five chapters are dedicated to the golden silk of the mollusk Pina nobilis, a meter-long native to the Mediterranean and other coastal habitats. William A. Haseltine, Forbes, 27 Nov. 2024 See all Example Sentences for mollusk 

Word History

Etymology

French mollusque, from New Latin Mollusca, from Latin, neuter plural of molluscus thin-shelled (of a nut), from mollis

First Known Use

1783, in the meaning defined above

Time Traveler
The first known use of mollusk was in 1783

Dictionary Entries Near mollusk

Cite this Entry

“Mollusk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mollusk. Accessed 23 Jan. 2025.

Kids Definition

mollusk

noun
mol·​lusk
variants or mollusc
: any of a large phylum of invertebrate animals (as snails, clams, and octopuses) with a soft body lacking segments and usually enclosed in a shell containing calcium
molluscan adjective
also molluskan

Medical Definition

mollusk

noun
mol·​lusk
variants or mollusc
: any invertebrate animal of the phylum Mollusca
molluscan adjective
also molluskan

More from Merriam-Webster on mollusk

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