: of or relating to a murid genus (Mus) or its subfamily (Murinae) which includes the common household rats and mice
also : of, relating to, or involving these rodents and especially the house mouse
murine noun

Examples of murine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To delineate the murine C3aR coding sequence, gene structure, 5′-flanking region, and chromosome location, cDNA and genomic clones encoding the mouse C3a receptor were isolated, characterized, and used in fluorescence in situ hybridization experiments. — Kirstin R.w. Matthews, STAT, 3 Feb. 2026 The murine version of ACE2 is, however, the wrong shape for the virus to link up with. — The Economist, 13 June 2020 In vivo reprogramming of murine cardiac fibroblasts into induced cardiomyocytes. — Ed Yong, Discover Magazine, 18 Apr. 2012

Word History

Etymology

ultimately from Latin mur-, mus

First Known Use

1607, in the meaning defined above

Time Traveler
The first known use of murine was in 1607

Browse Nearby Words

Cite this Entry

“Murine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/murine. Accessed 24 Sep. 2026.

Medical Definition

murine

1 of 2 adjective
1
a
: of or relating to the genus Mus or to its subfamily (Murinae) that includes most of the rats and mice which habitually live in intimate association with humans
murine rodents
b
: of, relating to, or produced by the house mouse
a murine odor
2
: affecting or transmitted by rats or mice
murine rickettsial diseases

murine

2 of 2 noun
: a murine animal
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