Noun | 1. | odd-toed ungulate - placental mammals having hooves with an odd number of toes on each foot hoofed mammal, ungulate - any of a number of mammals with hooves that are superficially similar but not necessarily closely related taxonomically order Perissodactyla, Perissodactyla - nonruminant ungulates: horses; tapirs; rhinoceros; extinct forms equid, equine - hoofed mammals having slender legs and a flat coat with a narrow mane along the back of the neck rhino, rhinoceros - massive powerful herbivorous odd-toed ungulate of southeast Asia and Africa having very thick skin and one or two horns on the snout tapir - large inoffensive chiefly nocturnal ungulate of tropical America and southeast Asia having a heavy body and fleshy snout artiodactyl, artiodactyl mammal, even-toed ungulate - placental mammal having hooves with an even number of functional toes on each foot |