say it: guh-LAK-tik
galactic is an adjective meaning "of or relating to a galaxy (especially our galaxy the Milky Way)". It carries 2 recorded senses.
of or relating to a galaxy (especially our galaxy the Milky Way)
“the galactic plane”
inconceivably large
Definitions, synonyms and semantic relations for galactic come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.