Relating to a galaxy or galaxies, especially our Milky Way; enormously large or impressive in scale.
From Greek 'galaxias' (milky), derived from 'gala' meaning 'milk.' The Milky Way was called the 'milky' galaxy because of its appearance, and the term expanded to describe all similar cosmic systems.
The word 'galaxy' literally means 'milky' because the Milky Way looks like someone spilled milk across the night sky—ancient people actually named it after dairy! When we use 'galactic' to mean 'huge and impressive,' we're literally saying something is as massive as an entire galaxy of stars.
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