supernova -
a star that explodes and becomes extremely luminous in the process
star (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
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Wiktionary
Substantiv
supernova -
A star which explodes, increasing its brightness to typically a billion times that of our sun, though attenuated by the great distance from our sun. Some leave only debris Type I; others fade to invisibility as neutron stars Type II.
Wikipedia
A supernova (plural supernovae) is a stellar explosion that is more energetic than a nova. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span.
OmegaWiki Dictionary
Ω
supernova Spectacular explosion of a star at the end of its lifetime
