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intergalactic

adjective [before noun]
 
 
/ˌɪn.tə.ɡəˈlæk.tɪk/ US  /-t̬ɚ-/

Definition

between galaxies (= large groups of stars and other matter): intergalactic spaceSpace travelAstronomy - general words
(Definition of intergalactic adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of intergalactic