: any of various mucoproteins that occur especially in secretions of mucous membranes
Examples of mucin in a Sentence
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The texture is exceptionally satisfying—its sticky, almost snail mucin-like feel sinks instantly into skin.
—
Kiana Murden, Vogue, 29 Jan. 2026
My day always starts in the bathroom brushing my teeth and doing my skincare (CosRX snail mucin, Vanicream moisturizer, and Innisfree sunscreen).
—R29 Team, Refinery29, 28 Jan. 2026
Atlanta dermatologists weigh in on snail mucin, TikTok’s slimiest skincare trend
The fountain of youth flows with snail snot.
—Aj Willingham, AJC.com, 14 Jan. 2026
Salmon sperm skin care was 2025’s snail mucin and beef tallow beauty craze.
—Kaleigh Werner, Footwear News, 26 Dec. 2025
See All Example Sentences for mucin
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Kiana Murden, Vogue, 29 Jan. 2026
My day always starts in the bathroom brushing my teeth and doing my skincare (CosRX snail mucin, Vanicream moisturizer, and Innisfree sunscreen).
—R29 Team, Refinery29, 28 Jan. 2026
Atlanta dermatologists weigh in on snail mucin, TikTok’s slimiest skincare trend
The fountain of youth flows with snail snot.
—Aj Willingham, AJC.com, 14 Jan. 2026
Salmon sperm skin care was 2025’s snail mucin and beef tallow beauty craze.
—Kaleigh Werner, Footwear News, 26 Dec. 2025
See All Example Sentences for mucin
Cite this Entry
“Mucin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucin. Accessed 7 Feb. 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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