: any of various mucoproteins that occur especially in secretions of mucous membranes
Examples of mucin in a Sentence
Recent Examples on the Web
If CosRx can convince people to willingly slather snail mucin on their faces, trusting the brand with hair care is a pretty easy next step.
—
Christa Joanna Lee,
Allure,
24 June 2026
Some of our go-to eye serums are marked down for Prime Day, too, including the COSRX Snail Mucin Peptide Under Eye Cream, which features snail mucin, peptides, and niacinamide to even out discoloration and soothe puffy areas.
—
Alanna Martine Kilkeary,
Glamour,
23 June 2026
Vitamin C and snail mucin and a mild retinoid are key.
—
Elise Taylor,
Vanity Fair,
5 May 2026
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
See All Example Sentences for mucin
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Christa Joanna Lee,
Allure,
24 June 2026
Some of our go-to eye serums are marked down for Prime Day, too, including the COSRX Snail Mucin Peptide Under Eye Cream, which features snail mucin, peptides, and niacinamide to even out discoloration and soothe puffy areas.
—
Alanna Martine Kilkeary,
Glamour,
23 June 2026
Vitamin C and snail mucin and a mild retinoid are key.
—
Elise Taylor,
Vanity Fair,
5 May 2026
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
See All Example Sentences for mucin
Cite this Entry
“Mucin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucin. Accessed 30 Jun. 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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