mucin

noun

mu·​cin ˈmyü-sᵊn 

: any of various mucoproteins that occur especially in secretions of mucous membranes

mucinous

ˈmyü-sᵊn-əs 

ˈmyüs-nəs

adjective

Examples of mucin in a Sentence

Recent Examples on the Web

Salmon sperm skin care was 2025’s snail mucin and beef tallow beauty craze. — Kaleigh Werner, Footwear News, 26 Dec. 2025

Too little mucin means a drier and more constipation-prone colon. — Jackie Flynn Mogensen, Scientific American, 19 Feb. 2026

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

What’s not snail mucin—which comprises 96%—is a blend of similarly nourishing ingredients, such as hyaluronic acid and panthenol. — Deanna Pai, Vogue, 18 Feb. 2026

Word History

Etymology

International Scientific Vocabulary muc-

First Known Use

1838, in the meaning defined above

Rhymes for mucin

• loosen

Medical 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