nounpl. -·horns· or -·horn·
the only species (Antilocapra americana) of a family (Antilocapridae) of ruminants of Mexico and the W U.S., having curved horns, each with one prong, that are shed annually: resembles both the deer and the antelope
nounpl. pronghorn, or prong·horns
A ruminant mammal (Antilocapra americana) of western North American plains that resembles an antelope, has forked horns that are shed and regrown annually, and is noted for its speed. Also called pronghorn antelope .
- A North American mammal, Antilocapra americana, resembling an antelope.