mouflon UK /ˈmuːflɒn/US /ˈmuːflɑn/ noun1 •A species of wild sheep, Ovis orientalis musimon, syn. Ovis aries musimon, endemic to Sardinia and Corsica.One of the most modified domesticates is the sheep, the various breeds of which bear little resemblance to its wild ancestor, the mouflon. — 2018 formsmouflons