WHISKER

[noun] [C] - any of the long stiff hairs growing on the face of a cat, mouse or other mammalHe watched the cat cleaning the milk off her whiskers.In the phrases by a whisker and within a whisker, whisker means the smallest amount possible.He lost count of the number of times in his career as an army medical officer that he came within a whisker of death.She beat the Brazilian by a whisker last time she ran.