What is "villainesses"

Usage examples of "villainesses".

Ron Hubbard's Mission Earth is a spec­tacular cavalcade of battles, of stunning plot reversals, with heroes and heroines, villains and villainesses, caught up in a superbly imaginative, intricately plotted invasion of Earth-as seen entirely and uniquely through the eyes of the aliens that already walk among us.

Which probably meant that they would bounce once and land back in my lap, to be disappeared from the ken of all villains and villainesses probably no better than I had hidden the Widowmaker armor.