black-tailed deer

[blak-teyld]

noun

a variety of mule deer, Odocoileus hemionus columbianus, of the western slope of the Rocky Mountains, having a tail that is black above.

Also blacktail deer

[blak-teyl] /ˈblækˌteɪl/.

Origin of black-tailed deer

An Americanism dating back to 1800–10

Also called black·tail.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018