Definition of black-tail in US English:

black-tail

noun

  • 1South African. A white sea bream (genus Diplodus, family Sparidae); especially the dassie, D. capensis.

  • 2North American. The black-tailed or mule deer, Odocoileus hemionus, of western North America.

Origin

Early 17th century (in an earlier sense). From black + tail.

Pronunciation

black-tail

/ˈblakteɪl/