Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

supernova

play
noun su·per·no·va \ˌsü-pər-ˈnō-və\

Simple Definition of supernova

  • astronomy : the explosion of a star that causes the star to become extremely bright

Source: Merriam-Webster's Learner's Dictionary

Full Definition of supernova

  1. 1 :  the explosion of a star in which the star may reach a maximum intrinsic luminosity one billion times that of the sun

  2. 2 :  one that explodes into prominence or popularity; also :  superstar

Examples of supernova in a sentence

  1. <tragically, a shoulder injury cut short the pitching career of one of baseball's brightest supernovas>



Origin and Etymology of supernova

New Latin


First Known Use: 1926

Rhymes with supernova


Learn More about supernova


Seen and Heard

What made you want to look up supernova? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

of striking ability or excellence

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

hiemal vernal estival brumal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ