hippotaur UK /ˈhɪpə.tɔː/US /ˈhɪpə.tɔɹ/ noun2 •A creature that is half bull and half horse.Theagenes was extolled to the skies for having welded the novel team into a hippotaur. — 1999 •(slang) A taur with the lower body of a hippopotamus. formshippotaurs