Pronunciation: (prông'hôrn", prong'-), [key]
—pl. -horns, (esp. collectively) -horn.
a fleet, antelopelike ruminant, Antilocapra americana, of the plains of western North America: now greatly reduced in number and endangered in some areas. Also called prong'horn an'telope.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.