Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

extragalactic

play
adjective ex·tra·ga·lac·tic \ˌek-strə-gə-ˈlak-tik\

Definition of extragalactic

  1. :  originating or existing outside the Milky Way galaxy; also :  of or relating to extragalactic space <extragalactic astronomy>



Origin of extragalactic

International Scientific Vocabulary


First Known Use: 1851


Seen and Heard

What made you want to look up extragalactic? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a timid, meek, or unassertive person

Get Word of the Day daily email!