extragalactic
ex·tra·ga·lac·tic
adj \ˌek-strə-gə-ˈlak-tik\Definition of EXTRAGALACTIC
: 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
Rhymes with EXTRAGALACTIC
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