Definition of supernova in English:

supernova

noun

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

    • ‘I read up on interstellar objects and astrophysics and studied quasars, pulsars and supernovas, but my main focus was black holes.’
    • ‘The research and analysis ranges from providing more accurate hurricane predictions, to climate change, galaxy formation, black holes and supernovas.’
    • ‘They discover comets, asteroids, quasars, pulsars, supernovae, planets orbiting other stars, and galaxies at the edge of the universe, but none have ever claimed to have discovered a UFO.’
    • ‘The picture provides evidence that supernovae are one source of cosmic rays, highly energetic particles that bombard the planet, passing through us in their thousands every day.’
    • ‘An international team of astronomers has identified the surviving companion star to the 1572 supernova explosion witnessed by the Danish astronomer Tycho Brahe.’

Pronunciation:

supernova

/ˌsuːpəˈnəʊvə/