What is the meaning of Whisker?

That part of the beard which grows upon the sides of the face, usually of the male, or upon the chin, or upon both.

A hair of the beard.

One of the long, projecting hairs growing at the sides of the mouth of a cat, or other animal.

The (very small) distance between two things.

Spreaders from the bows to spread the bowsprit shrouds.

A graphic element that shows the maxima and minima in a box plot.

One who, or that which, whisks, or moves with a quick, sweeping motion.

A small tendril that forms on metal.

Source: wiktionary.org