mucin

American  

[myoo-sin] / ˈmju sɪn /

noun

Biochemistry.

1. any of a class of glycoproteins found in saliva, gastric juice, etc., that form viscous solutions and act as lubricants or protectants on external and internal surfaces of the body.

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mucin British  

/ ˈmjuːsɪn /

noun

1. biochem any of a group of nitrogenous mucoproteins occurring in saliva, skin, tendon, etc, that produce a very viscous solution in water

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Other Word Forms

• mucinoid
  adjective
• mucinous
  adjective

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Etymology

Origin of mucin

First recorded in 1825–35; muc- + -in ²

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Example Sentences

See Examples For:

mucin

Rather than concentrating on nerve or muscle function, the researchers turned their attention to colonic mucin.

From Science Daily ● Feb. 19, 2026

They dissect ingredient lists, film unboxings and record "Get Ready With Me" videos built around ideas such as "glass skin", sheet masks and, of course, snail mucin.

From BBC ● Jan. 2, 2026

After a snail mucus skin care boom in South Korea, the product—also referred to as snail mucin or secretion—was widely shared on social media.

From National Geographic ● Jan. 8, 2024

One particular item took off — a snail mucin essence from popular Korean brand COSRX.

From Los Angeles Times ● Dec. 3, 2023

Some of the dried mucin was then soaked in water for two days, and little cubes of the proper size were placed on three leaves.

From Insectivorous Plants by Charles Darwin

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