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Từ điển Oxford Learners Wordfinder Dictionary
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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