bĭson, ontis, m., = βίσων [acc. to Oppian. Cyn. 2, 155, named from the Thracian Βίστονες],
a species of wild ox living in northern regions , the Urus , the humpbacked ox , bison : Bos bison, Linn.; Plin. 8, 15, 15, § 38; Sen. Hippol. 65; Mart. Spect. 23, 4; Sol. 20.