pole star

Other forms: pole stars

Definitions of pole star
  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
    synonyms: North Star, Polaris, polar star, polestar
    see moresee less
    example of:
    loadstar, lodestar
    guiding star; a star that is used as a reference point in navigation or astronomy
    variable, variable star
    a star that varies noticeably in brightness
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