COUGAR

[cou.gar] n, pl cougars also cougar [F couguar, modif. of NL cuguacuarana, fr. Tupi siwasuarana, fr. siwasu deer + -rana resembling] (1774): a large powerful tawny brown cat (Felis concolor) formerly widespread in the Americas but now reduced in number or extinct in many areas--called also catamount, mountain lion, panther, puma