Ga*lac"tic (?), a. [Gr. milky, fr. , , milk. See Galaxy, and cf. Lactic.]
1.
Of or pertaining to milk; got from milk; as, galactic acid.
2.
Of or pertaining to the galaxy or Milky Way.
Galactic circle Astron., the great circle of the heavens, to which the course of the galaxy most nearly conforms. Herschel. -- Galactic poles, the poles of the galactic circle.
© Webster 1913.