mouser mouseproof • mousery · · · Info · Definitions · Characters · · mouser · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a cat proficient at mousing. · · Noun Definition 1 Characters · · e latin small letter e U+0065 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075