mu·​rine ˈmyu̇r-ˌīn How to pronounce murine (audio)
: 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 In vivo reprogramming of murine cardiac fibroblasts into induced cardiomyocytes. Ed Yong, Discover Magazine, 18 Apr. 2012 The murine version of ACE2 is, however, the wrong shape for the virus to link up with. The Economist, 13 June 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'murine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

Dictionary Entries Near murine

Cite this Entry

“Murine.” Dictionary, Merriam-Webster, Accessed 23 Feb. 2024.

Medical Definition


1 of 2 adjective
mu·​rine ˈmyu̇(ə)r-ˌīn How to pronounce murine (audio)
: 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
: of, relating to, or produced by the house mouse
a murine odor
: affecting or transmitted by rats or mice
murine rickettsial diseases


2 of 2 noun
: a murine animal
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