Definition of whisker:
(n) :
That part of the beard which grows upon the sides of the face, usually of the male, or upon the chin, or upon both.
(n) :
A hair of the beard.
(n) :
One of the long, projecting hairs growing at the sides of the mouth of a cat, or other animal.
(n) :
(colloquial) The (very small) distance between two things.
(n) :
One who, or that which, whisks, or moves with a quick, sweeping motion.
(n) :
(statistics) A graphic element that shows the maxima and minima in a box plot.