ox -
an adult castrated bull of the genus Bos; especially Bos taurus
bos taurus,
cattle,
cows,
kine,
oxen domesticated bovine animals as a group regardless of sex or age; "so many head of cattle"; "wait till the cows come home"; "seven thin and ill-favored kine"- Bible; "a team of oxen"
bos,
genus bos wild and domestic cattle; in some classifications placed in the subfamily Bovinae or tribe Bovini
An ox or bullock (Australia, New Zealand, India) is a bovine animal trained as a draft animal. Oxen are commonly adult, castrated male cattle, but cows (adult females) or bulls (intact males) may also be used in some areas. Oxen are used for plowing, transport (pulling carts or wagons or sometimes for riding), threshing grain by trampling, and for powering machines for grinding grain, irrigation or other purposes.