mouser
Americannoun
-
an animal that catches mice.
Our cat is a good mouser.
-
a person or thing that seeks or prowls, as if for prey.
noun
Etymology
Origin of mouser
Middle English word dating back to 1350–1400; see origin at mouse, -er 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
On Saturday came sad news that Palmerston, a black-and-white cat, once mouser to the Foreign Office and "Diplocat extraordinaire", had passed away in Bermuda where he retired in 2020.
From Barron's ● Feb. 15, 2026
Larry the cat already serves as 10 Downing Street's chief mouser but there are no plans to introduce pets to tackle the pest problem in the Palace of Westminster down the road.
From BBC ● Jun. 18, 2025
A number of you also have had the great joy of having the greatest cat ever and the greatest mouser ever.
From Seattle Times ● Mar. 3, 2023
In subsequent years, he was given the exalted title of chief mouser to the Cabinet Office, a post he has carried out with mixed results, depending on who is passing judgment.
From New York Times ● Sep. 6, 2022
Or get bottle-fed, if you’re a small blind kitten with a white dot between your eyes that only needs a little extra love to become a pouncing, lively mouser.
From "The Wrong Way Home" by Kate O’Shaughnessy
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
