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deer mouse

American  
deer mouse British  

noun

  1. any of various mice of the genus Peromyscus, esp P. maniculatus, of North and Central America, having brownish fur with white underparts: family Cricetidae See also white-footed mouse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of deer mouse

An Americanism dating back to 1825–35

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.

Supporting characters like Fiona, a flying squirrel, and Dash, a deer mouse, round out the cast.

From Los Angeles Times • Mar. 3, 2026

Whereas the deer mouse is promiscuous -- even a single litter of pups can have four different fathers -- the oldfield mouse mates for life.

From Science Daily • May 15, 2024

A deer mouse, temporarily captured for a behavioral test before being rereleased to the grounds of a study site at the University of Maine in late October.Credit...

From New York Times • Nov. 25, 2022

Figure 37.1 In the southwestern United States, rainy weather causes an increase in production of pinyon nuts, causing the deer mouse population to explode.

From Textbooks • Jun. 9, 2022

I look at the nuts all neatly peeled and recognize the handiwork of a white-footed deer mouse.

From "On the Far Side of the Mountain" by Jean Craighead George

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