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Noun: extragalactic nebula  ,ek-stru-gu'lak-tik 'ne-byu-lu
  1. (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust
    "'extragalactic nebula' is a former name for 'galaxy'";
    - galaxy

Derived forms: extragalactic nebulae

Type of: accumulation, aggregation, assemblage, collection

Part of: cosmos, creation, existence, macrocosm, universe, world

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