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1. Oxford American Dictionary

   supernova

   • IPA[ˈso͞opərˌnōvə]

   美式

   • n.
     a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.

   • noun: supernova, plural noun: supernovae

2. • 更多解釋

   supernova

   • IPA[ˈsuːpəˌnəʊvə]

   英式

   • n.
     a star that suddenly increases greatly in brightness because of a catastrophic explosion that ...

   Oxford Dictionary