Oxford Dictionary English Quarter Horse nounnoun BrE BrE//ˈkwɔːtə hɔːs// ; NAmE NAmE//ˈkwɔːrtər hɔːrs// (North American English) Equine sports Add to my wordlistjump to other resultsa small breed of horse that can run very fast over short distances See related entries: Equine sportsSee Quarter Horse in the Oxford Advanced American DictionaryCheck pronunciation: Quarter Horse oxfordlearnersdictionaries.com