Definition of mucin
: any of various mucoproteins that occur especially in secretions of mucous membranes
mucinousplay \-sən-əs, ˈmyüs-nəs\ adjective
Recent Examples of mucin from the Web
Deployment of hagfish slime thread skeins requires the transmission of mixing forces via mucin strands.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mucin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of mucin
International Scientific Vocabulary muc-
First Known Use: 1838See Words from the same year
Medical Definition of mucin
: 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
Learn More about mucin
Britannica.com: Encyclopedia article about mucin
Seen and Heard
What made you want to look up mucin? Please tell us where you read or heard it (including the quote, if possible).