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Definition of supernova noun from the Oxford Advanced American Dictionary

 

supernova

 noun
noun
NAmE//ˈsupərˌnoʊvə//
 
, NAmE//ˌsupərˈnoʊvə//
 
(pl. supernovae
NAmE//ˈsupərˌnoʊvi//
 
, NAmE//ˌsupərˈnoʊvi//
 
, (or )supernovas) (astronomy)
 
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a star that suddenly becomes much brighter because it is exploding compare nova
See supernova in the Oxford Advanced Learner's Dictionary
Check pronunciation: supernova

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