Pronunciation: (blak'tāld"), [key]
a variety of mule deer, Odocoileus hemionus columbianus, of the western slope of the Rocky Mountains, having a tail that is black above. Also,black'tail deer'Pronunciation: (blak'tāl"). [key]Also called black'tail".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.