Large recently extinct long horned European wild ox; considered one of the ancestors of domestic cattle
The European bison 
Noun
 large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle
Noun
 European bison having a smaller and higher head than the North American bison
n.
 The European bison (Bison bonasus, / Europaeus), 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 Caesar, with which it has often been confused.
Aurochs
The European bison 
Usage Examples
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