| extragalactic nebula 
 
 (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'
 • Syn:
 galaxy
 • Derivationally related forms:
 galactic (for: galaxy)
 • Topics:
 astronomy, uranology
 • Hypernyms:
 collection, aggregation, accumulation, assemblage
 • Hyponyms:
 spiral galaxy, spiral nebula, Great Attractor, Milky Way, Milky Way Galaxy, Milky Way System
 • Instance Hyponyms:
 Magellanic Cloud
 • Member Holonyms:
 universe, existence, creation, world, cosmos, macrocosm
 • Member Meronyms:
 star
 • Substance Meronyms:
 cosmic dust
 
 
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