Aurochs

n.

1.

(Zool.) The European bison (Bison bonasus, or Bison Europæus), once widely distributed, but now nearly extinct, except where protected in the Lithuanian forests, and perhaps in the Caucasus. It is distinct from the Urus of Cæsar, with which it has often been confused.

Noun	1.	aurochs - European bison having a smaller and higher head than the North American bison Synonyms: Bison bonasus, wisent
	2.	aurochs - large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle Synonyms: Bos primigenius, urus

bison, Bison bonasus, genus Bison, wisent