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

Snail mucin has made a recent comeback in the US with popular products like COSRX’s snail essence formula, which has nearly 4,000 reviews on Ulta, a cosmetics chain. —Sam Delgado, Vox, 17 Mar. 2025

Snail mucin is one of the trendiest skincare ingredients right now. —Savannah Smith, Rolling Stone, 2 Oct. 2024

The best sheet masks are more than just selfie material—they’re serious skin-care products designed to hug your face, soothe your skin, and deliver high concentrations of potent ingredients like hyaluronic acid, niacinamide, snail mucin, and retinol. —Annie Blackman, Allure, 10 Apr. 2025

Packed with snail mucin, this gentle gel cream creates a barrier to lock in moisture. —Claire Rutter, Rolling Stone, 2 Oct. 2024

Word History

Etymology

International Scientific Vocabulary muc-

First Known Use

1838, in the meaning defined above

Rhymes for mucin

• brucine
• 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