catamount /ˈkætəmaʊnt/ noun2 •(US) A wild animal of the family Felidae, especially the cougar, mountain lion or puma (Puma concolor).Uncle Charley's voice was very soft and there was a weary note in it. "Great snarlin' catamounts, but I'm tired." — 1920 •(no longer used) Synonym of catamountain (“a leopard, a panther (Panthera pardus)”). formscatamounts