Word of the Day ungulate Photography: David Clode un·gu·late /ˈəNGɡyələt,ˈəNGɡyəˌlāt/ Learn to pronounce noun ZOOLOGY noun: ungulate ; plural noun: ungulates a hoofed mammal. Ungulata are any members of a diverse group of primarily large mammals with hooves. These include odd-toed ungulates such as horses and rhinoceroses, and even-toed ungulates such as cattle, pigs, giraffes, camels, deer, and hippopotamuses, as well as sub-ungulates such as elephants.