/kooh"geuhr/ , n. , pl. cougars , ( esp. collectively ) cougar .
a large, tawny cat, Felis concolor, of North and South America: now greatly reduced in number and endangered in some areas. Also called mountain lion, panther, puma .
[ 1765-75; couguar (Buffon) cuguacu ara, appar. a misrepresentation of Guarani guaçu ara ]