- of or obtained from milk; lactic
- Astron. of or pertaining to the Milky Way or some other galaxy
Origin of galacticClassical Greek galaktikos, milky from gala (gen. galaktos), milk from Indo-European base an unverified form glak- from source Classical Latin lac, milk
- Of or relating to a galaxy, especially the Milky Way.
- Of enormous size; immense.