a ruminant mammal, Antilocapra americana, inhabiting rocky deserts of North America and having small branched horns: family Antilocapridae
Also called: American antelope
pronghorn in American English
(ˈprɔŋˌhɔrn)
US
nounWord forms: pluralˈprongˌhorns or ˈprongˌhorn
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