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fireball definition

fire·ball (-bôl′)

noun

  1. something resembling a ball of fire; specif.,
    1. a large, bright meteor
    2. ball lightning
    3. a high-temperature, luminous ball of gas which forms shortly after a nuclear explosion
  2. Historical a ball of explosive or combustible material thrown as a weapon in battle
  3. ☆ Informal a vigorous, energetic person

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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