house mouse

noun

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

Origin

1825-35

Examples from the web for house mouse

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.

British Dictionary definitions for house mouse

noun

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