We found one dictionary that defines the word supernoval:

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1. supernoval: Wiktionary

Definitions from Wiktionary (supernoval) ▸ adjective:  Of or relating to a supernova. ▸ Words similar to supernoval ▸ Usage examples for supernoval ▸ Idioms related to supernoval ▸ Wikipedia articles (New!) ▸ Popular nouns described by supernoval ▸ Words that often appear near supernoval ▸ Rhymes of supernoval ▸ Invented words related to supernoval