: any of various mucoproteins that occur especially in secretions of mucous membranes
Examples of mucin in a Sentence
Recent Examples on the Web
But while the brand may be responsible for popularizing the ingredient in the 21st century, snail mucin was introduced to the beauty world decades before.
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Kaleigh Werner, Footwear News, 1 July 2025
Snail mucin is one of K-beauty’s most popular ingredients.
—Sarah Y. Wu, Glamour, 23 June 2025
Snail mucin is known to reduce fine lines and improve your skin’s natural elasticity.
—Robyn Merrett, StyleCaster, 23 May 2025
Then shop this eye cream from Cosrx’s ultra-popular skincare formulated with snail mucin.
—Isabel Garcia, People.com, 7 Mar. 2025
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Kaleigh Werner, Footwear News, 1 July 2025
Snail mucin is one of K-beauty’s most popular ingredients.
—Sarah Y. Wu, Glamour, 23 June 2025
Snail mucin is known to reduce fine lines and improve your skin’s natural elasticity.
—Robyn Merrett, StyleCaster, 23 May 2025
Then shop this eye cream from Cosrx’s ultra-popular skincare formulated with snail mucin.
—Isabel Garcia, People.com, 7 Mar. 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 5 Aug. 2025.
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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