whisker

n.

  1. One who, or that which, whisks, or moves with a quick, sweeping motion.
  2. Formerly, the hair of the upper lip; a mustache; -- usually in the plural.
  3. That part of the beard which grows upon the sides of the face, or upon the chin, or upon both; as, side whiskers; chin whiskers.
  4. A hair of the beard.
  5. One of the long, projecting hairs growing at the sides of the mouth of a cat, or other animal.
  6. Iron rods extending on either side of the bowsprit, to spread, or guy out, the stays, etc.