[ myoo-sin ]

  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.

Origin of mucin

First recorded in 1825–35; muc- + -in2

Other words from mucin

  • mu·cin·oid, adjective
  • mu·ci·nous [myoo-suh-nuhs], /ˈmyu sə nəs/, adjective

Words Nearby mucin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use mucin in a sentence

British Dictionary definitions for mucin


/ (ˈmjuːsɪn) /

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

Origin of mucin

C19: via French from Latin mucus

Derived forms of mucin

  • mucinous, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012