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Nuclear fireball - definitions 1 or 2
English Wikipedia has articles on:


fire +‎ ball


fireball (plural fireballs)

  1. A ball of fire, especially one associated with an explosion.
  2. (astronomy) A meteor bright enough to cast shadows.
    • 2003, Trevor Palmer, ‎Paul D. Taylor, ‎Robert N. Brandon, Perilous Planet Earth: Catastrophes and Catastrophism Through the Ages, →ISBN:
      In January 1999, a fireball exploded over Alaska.
    • 2005, Surendra Verma, The Mystery of the Tunguska Fireball, →ISBN, page 234:
      Moments later a second satellite records a fireball exploding in the clouded sky.
  3. A class of sailing dinghy with a single trapeze and a symmetrical spinnaker, sailed by a crew of two.
  4. (heraldry) A charge made of a disc-shaped bomb shell, with four sets of flames, at the top, bottom and on either side.
  5. (historical) A ball filled with combustibles to be thrown among enemies.

Derived termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.


fireball (third-person singular simple present fireballs, present participle fireballing, simple past and past participle fireballed)

  1. (intransitive) To explode in a ball of flame.
    The car swerved off a road, hit a wall, and fireballed as the petrol tank exploded.
  2. (baseball) To pitch the ball very fast.
  3. (transitive, fantasy) To attack with balls of fire.

See alsoEdit