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
Examples of mollusk in a Sentence
Recent Examples on the Web
For an amphibious soul, the height of joy comes with underwater tracking: Foster taught himself to see tracks of mollusks in the sand atop the back of a stingray, or an octopus's predation marks on a shell.
—
Barbara J. King, NPR, 13 May 2024
The mollusks first arrived in the Great Lakes in 1997 after ballast water was dumped into the water from cargo ships coming from the Baltic Sea.
—Caitlin Looby, Journal Sentinel, 2 May 2024
See all Example Sentences for mollusk 
Barbara J. King, NPR, 13 May 2024
The mollusks first arrived in the Great Lakes in 1997 after ballast water was dumped into the water from cargo ships coming from the Baltic Sea.
—Caitlin Looby, Journal Sentinel, 2 May 2024
See all Example Sentences for mollusk
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mollusk.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Mollusk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mollusk. Accessed 29 May. 2024.
Copy CitationKids 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
Medical Definition
mollusk
noun
mol·lusk
variants
or mollusc
: any invertebrate animal of the phylum Mollusca
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