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English definition of “nebula”

nebula

noun [C]     /ˈneb.jʊ.lə/ (plural nebulae or nebulas) specialized
a cloud of gas or dust in space, appearing either bright or darkAstronomy - general words nebular     /-lər/ US  /-lɚ/ adjective
(Definition of nebula noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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