water buffalo

noun
1.
a buffalo, Bubalus bubalis, of the Old World tropics, having large, flattened, curved horns: wild populations are near extinction.
Also called water ox.
Origin
1885-90
British Dictionary definitions for water buffalo

water buffalo

noun
1.
a member of the cattle tribe, Bubalus bubalis, of swampy regions of S Asia, having widely spreading back-curving horns. Domesticated forms are used as draught animals Also called Asiatic buffalo, Indian buffalo, carabao