Definitions for "Pole star"
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
a star that is located almost due north or due south and is useful for navigation
The star used by navigators to find north, because it is the only star whose position in the night sky is always the same. Also known as the North Star or, in Latin, Polaris.