aurochs

English Thesaurus

1. large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle (noun.animal)

hypernym	:	ox, wild ox,
definition	:	any of various wild bovines especially of the genera Bos or closely related Bibos (noun.animal)

member meronym	:	bos, genus bos,
definition	:	wild and domestic cattle; in some classifications placed in the subfamily Bovinae or tribe Bovini (noun.animal)

2. European bison having a smaller and higher head than the North American bison (noun.animal)

hypernym	:	bison,
definition	:	any of several large humped bovids having shaggy manes and large heads and short horns (noun.animal)

member meronym	:	genus bison,
definition	:	sometimes considered a subgenus of genus Bos: American buffalo (noun.animal)