n. The cat of the mountain; the European wildcat.n. In heraldry, this animal when used as a bearing.n. In the United States and Canada: A wildcat; a lynx; any species of the genus Lynx, which contains several large wildcats with short tails, penciled ears, and reddish or reddish-gray coloration, much variegated with lighter and darker markings, as the bay lynx, Lynx rufus, or the Canada lynx, L. canadensis. See cut under Lynx. The cougar, puma, or mountain lion, Felis concolor. See cougar.