Extragalactic

Full definition of extragalactic

Adjective

1. (astronomy) Originating outside of the Milky Way galaxy.Extragalactic astronomy is the study of things outside the Milky Way

1. (astronomy) Originating outside of a galaxy

Related terms

• extrasolar
• extraplanetary
• extraterrestrial
• intergalactic
• intragalactic
• galactic