What is another word for extragalactic?
Pronunciation: [ˌɛkstɹəɡɐlˈaktɪk] (IPA) 
Extragalactic, meaning beyond our galaxy, is a term used in astronomy and astrophysics. Some synonyms for this word include intergalactic, transgalactic, and interstellar. Intergalactic refers to objects or phenomena that exist between two or more galaxies. Transgalactic is similar to intergalactic, but can also refer to things that move between galaxies. Interstellar refers to the space between stars, and can also be used to describe objects or events that occur in this space. Other related terms include cosmological, cosmic, and universal, all of which refer to the universe as a whole. Synonyms for extragalactic may be used interchangeably in scientific literature and discussions.
