Ma'anar ƙamus na kalmar "aurochs" wani bijimin daji ne da ba a taɓa gani ba, wanda aka taɓa samu a Turai, Asiya, da Arewacin Afirka. Aurochs manyan dabbobi ne masu zafin gaske waɗanda tsayinsu ya wuce ƙafa shida kuma suna da ƙahoni manya. An farautarsu don bacewa a ƙarni na 17. Kalmar "aurochs" ta fito ne daga harshen Jamusanci kuma tana nufin "tsohuwar saniya"
