mouser

noun mous·er \ˈmau̇-sər, US also & chiefly British -zər\

: a cat that is good at catching mice

Full Definition of MOUSER

: a catcher of mice and rats; especially : a cat proficient at mousing

See mouser defined for English-language learners

See mouser defined for kids

15th century

MOUSER Defined for Kids

noun mous·er \ˈmau̇-sər\

: a cat good at catching mice

Next Word in the Dictionary: mousetrap (noun)Previous Word in the Dictionary: mouse potatoAll Words Near: mouser

What made you want to look up mouser? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears