mucin

noun

mu·​cin ˈmyü-sᵊn How to pronounce mucin (audio)
: any of various mucoproteins that occur especially in secretions of mucous membranes
mucinous
ˈmyü-sᵊn-əs How to pronounce mucin (audio)
ˈmyüs-nəs
adjective

Examples of mucin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
CosRx’s Advanced Snail 96 Mucin Power Essence is the product most credited with turning snail mucin from an eyebrow-raising ingredient into a full-on K-beauty staple. — Lauren Jarvis-Gibson, Sacbee.com, 26 Aug. 2026 Snail mucin has already made the jump; mung bean, green tangerine and adenosine-and-peptide blends are the next candidates for mainstream naming recognition. — Lauren Jarvis-Gibson, Miami Herald, 26 Aug. 2026 Snail Mucin When K-beauty broke into the US market in 2016, snail mucin was the introductory ingredient that got everyone hooked. — Audrey Noble, Vogue, 4 Aug. 2026 Using snail mucin as part of your skincare routine daily or a few times a week may improve your skin. — Laura Dorwart, Health, 22 July 2026 See All Example Sentences for mucin

Word History

Etymology

International Scientific Vocabulary muc-

First Known Use

1838, in the meaning defined above

Time Traveler
The first known use of mucin was in 1838

Rhymes for mucin

See All Rhymes for mucin

Browse Nearby Words

mucilaginous
mucin
muck
See all Nearby Words

Cite this Entry

“Mucin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucin. Accessed 3 Sep. 2026.

Copy Citation

Medical Definition

mucin

noun
mu·​cin ˈmyüs-ᵊn How to pronounce mucin (audio)
: 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

More from Merriam-Webster on mucin

Britannica.com: Encyclopedia article about mucin

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All