antelope squirrel

noun

variants or less commonly antelope chipmunk

: a small ground squirrel (Citellus leucurus) of the western U.S. having a white undersurface of the tail that when displayed over the back suggests the white rump of the American antelope

also : any of several similar and closely related rodents

Word History

First Known Use

1876, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now