Ar'galAr'ga*li noun [ Mongolian.] (Zoology) A species of wild sheep ( Ovis ammon , or O. argali ), remarkable for its large horns. It inhabits the mountains of Siberia and central Asia. » The bearded argali is the aoudad. See Aoudad . The name is... Found on http://www.encyclo.co.uk/webster/A/118