galactic circle

Webster's Dictionary (GCIDE)

Galactic \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. [1913 Webster]

2.Of or pertaining to the galaxy or Milky Way. [1913 Webster]

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. [1913 Webster]