STALLION Meaning of STALLION in English /stal"yeuhn/ , n.an uncastrated adult male horse, esp. one used for breeding. [ 1275-1325; ME stalon estalon, equiv. to stal- ( 1 ) + -on n. suffix ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012