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Definition of supernova noun from the Oxford Advanced Learner's Dictionary

supernova

noun

/ˈsuːpənəʊvə/

/ˈsuːpərnəʊvə/

(plural supernovae

/ˈsuːpənəʊviː/

/ˈsuːpərnəʊviː/

, supernovas)

(astronomy)

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a star that suddenly becomes much brighter because it is exploding compare nova

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See supernova in the Oxford Advanced American Dictionary

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verb

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