(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust. Synonym: galaxy.
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Words linked to "Extragalactic nebula" : Magellanic Cloud, world, star, spiral galaxy, Milky Way, astronomy, assemblage, spiral nebula, creation, galaxy, Milky Way Galaxy, cosmic dust, existence, accumulation, aggregation, uranology, cosmos, Great Attractor, Milky Way System, macrocosm, universe, collection |
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