supernova Hear it!

supernova definition

super·nova (-nō′və)

noun pl. supernovae -·vae (-vē) or supernovas -·vas

a rare, extremely bright nova that suddenly increases up to a billion times in brightness and reaches an absolute magnitude of c. -16

Etymology: ModL: see super- & nova

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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