house mouse

noun
a brownish-gray Old World mouse, Mus musculus, now common in the U.S. in or near houses.

Origin:
1825–35

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
house mouse
 
n
any of various greyish mice of the Old World genus Mus, esp M. musculus, a common household pest in most parts of the world: family Muridae

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Later, humans were again responsible for giving the hybrids an edge over their pure-bred house mouse relatives.
But only six of these changes were the house mouse's own innovations.
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