stallion [stallions](uncastrated male horse) noun [UK: ˈstæ.lɪən] [US: ˈstæ.ljən]The magnificent stallion fetched a huge price at auction. = El magnífico semental alcanzó un precio enorme en la subasta.
stud(male animal kept for breeding) noun [UK: stʌd] [US: ˈstəd]Beneath the gray hair, a famous stud still lies. = Bajo el pelo gris, hay todavía un famoso semental.