Galactic /(?)/

Ga·lac·tic

Galactic

a.
  1. Of or pertaining to milk; got from milk; as, galactic acid.
  2. Of or pertaining to the galaxy or Milky Way.

Phrases & Compounds

Galactic circle
the great circle of the heavens, to which the course of the galaxy most nearly conforms.
Galactic poles
the poles of the galactic circle.