polestar Meaning, Definition & Usage

  1. noun the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it
    pole star; Polaris; polar star; North Star.

WordNet

Pole"star` noun
Definitions
  1. Polaris, or the north star. See North star, under North.
  2. A guide or director.

Webster 1913