polar star

Noun polar star has 1 sense

• polar star(n = noun.object) north star, polaris, pole star, polestar - 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;
is a member of little bear, ursa minor, dipper, little dipper
is a kind of loadstar, lodestar, variable, variable star