【医】 原始牛

[ noun ]
large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle
<noun.animal>

Urus \U"rus\, n. [L.; of Teutonic origin. See {Aurochs}.]
(Zo["o]l.)
A very large, powerful, and savage extinct bovine animal
({Bos urus} or {Bos primigenius}) anciently abundant in
Europe. It appears to have still existed in the time of
Julius C[ae]sar. It had very large horns, and was hardly
capable of domestication. Called also, {ur}, {ure}, and
{tur}.