galactic

adjective4

1. •
   Relating to a galaxy.
2. •
   Relating to the Milky Way galaxy.

   • Galactic astronomy is the study of the Milky Way.
3. •
   (figurative) Enormous (in size or impact).

   • The policies and decisions to be made were neither very complex nor very numerous, since at that time, the needs and priorities in Germany did not involve issues of galactic impact, […] — 1998
4. •
   Of or pertaining to milk, or the secretion of milk.

adjective1

1. •
   Pertaining to the Milky Way Galaxy.