Definify.com
Webster 1913 Edition
Galactic
1.
Of or pertaining to milk; got from milk;
as,
. galactic
acid2.
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.