: mule deer
especially : one of a subspecies (Odocoileus hemionus columbianus) especially of British Columbia, Oregon, and Washington

Word History

First Known Use

1806, in the meaning defined above

Time Traveler
The first known use of black-tailed deer was in 1806

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Cite this Entry

“Black-tailed deer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black-tailed%20deer. Accessed 3 Sep. 2026.

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