noun a wild horse, Equus caballus przevalskii, chiefly of Mongolia and Sinkiang, characterized by light yellow coloring and a stiff, upright black mane with no forelock: the only remaining breed of wild horse, it is now endangered and chiefly maintained in zoos.
Also, Prze·val·ski's horse.
Origin:
after Nikolaĭ Mikhaĭlovich Przhevalʾskiĭ (Polish Przewalski) (1839–88), Russian explorer, the animal's first European observer (1876)