mol·​lusk | \ ˈmä-ləsk How to pronounce mollusk (audio) \
variants: or mollusc

Definition of mollusk

: 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

Other Words from mollusk

molluscan or less commonly molluskan \ mə-​ˈlə-​skən How to pronounce mollusk (audio) , mä-​ \ adjective

Examples of mollusk in a Sentence

Recent Examples on the Web When the law was updated in 1984 under Gov. George Deukmejian, the reference to invertebrates was removed, but the new law protected the Trinity bristle snail, an invertebrate mollusk that lives on land. Bob Egelko, San Francisco Chronicle, 31 May 2022 According to a paleontologist, a Tully Monster looks like a worm, a mollusk, an arthropod and a fish altogether. Darcel Rockett, Chicago Tribune, 27 May 2022 It's presented when the train arrives at Turtle Island, which is famous for the mollusk. Maggie Hiufu Wong, CNN, 2 May 2022 These pearls form naturally as opposed to bead-cultured pearls, which form when an artificial center is placed inside the mollusk, Science News reports. Elizabeth Gamillo, Smithsonian Magazine, 12 Nov. 2021 Pearls form when a speck of sand, debris, or food particles are lodged inside a mollusk. Elizabeth Gamillo, Smithsonian Magazine, 12 Nov. 2021 Slate voices the main mollusk in a cast that also features Isabella Rossellini, Rosa Salazar, Thomas Mann, and Lesley Stahl. Jennifer Zhan, Vulture, 18 Nov. 2021 Randall, Lala’s main mollusk, orchestrates this tournament and then wins it, besting Tom Schwartz in straight sets, though nothing about Tom Schwartz is either straight or set. Brian Moylan, Vulture, 12 Oct. 2021 The Rocky Mountains provided the Western United States ample protection from the mollusk until 2007, when the first quagga was discovered in Lake Mead, downstream on the Colorado River from Lake Powell., 2 Sep. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mollusk.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of mollusk

1783, in the meaning defined above

History and Etymology for mollusk

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

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Time Traveler for mollusk

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The first known use of mollusk was in 1783

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Dictionary Entries Near mollusk



Mollweide projection

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Last Updated

4 Jun 2022

Cite this Entry

“Mollusk.” Dictionary, Merriam-Webster, Accessed 5 Jul. 2022.

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More Definitions for mollusk


mol·​lusk | \ ˈmä-ləsk How to pronounce mollusk (audio) \

Kids Definition of mollusk

: an animal (as a clam, snail, or octopus) that lives mostly in water and has a soft body usually enclosed in a shell containing calcium


variants: or mollusc \ ˈmäl-​əsk How to pronounce mollusk (audio) \

Medical Definition of mollusk

: any invertebrate animal of the phylum Mollusca

Other Words from mollusk

molluscan also molluskan \ mə-​ˈles-​kən, mä-​ How to pronounce mollusk (audio) \ adjective

More from Merriam-Webster on mollusk

Nglish: Translation of mollusk for Spanish Speakers Encyclopedia article about mollusk


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