Definition of wild cats:
(n) :
An undomesticated felid, as tigers or lions.
(n) :
A feral cat.
(n) :
(uncommon) Alternative form of wildcat, (UK) the Old World wildcats (Felis silvestris) or (US) the bobcat (Lynx rufus) and other New World lynxes. [A cat that lives in the wilderness, specifically:]
(n) :
(uncommon) Alternative form of wildcat in its other extended senses.