: any of various mucoproteins that occur especially in secretions of mucous membranes
Examples of mucin in a Sentence
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It’s even reached the freezer aisle at Costco — where shoppers have repeatedly exhausted supplies of frozen kimbap — and now features prominently at beauty store counters, where an army of Gen Z consumers slather on Korean creams and serums infused with snail mucin, rice water and bee venom.
—
Dan Bilefsky, HollywoodReporter, 21 Mar. 2026
Three decades later, that secret arrived on American shores like a tsunami—sheet masks, snail mucin, toner pads, pimple patches lining every retail shelf.
—David Yi, Allure, 23 Feb. 2026
Too little mucin means a drier and more constipation-prone colon.
—Jackie Flynn Mogensen, Scientific American, 19 Feb. 2026
The texture is exceptionally satisfying—its sticky, almost snail mucin-like feel sinks instantly into skin.
—Kiana Murden, Vogue, 29 Jan. 2026
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Dan Bilefsky, HollywoodReporter, 21 Mar. 2026
Three decades later, that secret arrived on American shores like a tsunami—sheet masks, snail mucin, toner pads, pimple patches lining every retail shelf.
—David Yi, Allure, 23 Feb. 2026
Too little mucin means a drier and more constipation-prone colon.
—Jackie Flynn Mogensen, Scientific American, 19 Feb. 2026
The texture is exceptionally satisfying—its sticky, almost snail mucin-like feel sinks instantly into skin.
—Kiana Murden, Vogue, 29 Jan. 2026
See All Example Sentences for mucin
Cite this Entry
“Mucin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucin. Accessed 21 May. 2026.
Copy CitationMedical Definition
mucin
noun
mu·cin
ˈmyüs-ᵊn 
: any of a group of mucoproteins that are found in various human and animal secretions and tissues (as in saliva, the lining of the stomach, and the skin) and that are white or yellowish powders when dry and viscid when moist
gastric mucin
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