fireball Meaning, Definition & Usage

  1. noun an especially luminous meteor (sometimes exploding)
    bolide.
  2. noun a highly energetic and indefatigable person
    human dynamo; ball of fire; powerhouse.
  3. noun a ball of fire (such as the sun or a ball-shaped discharge of lightning)
  4. noun the luminous center of a nuclear explosion

WordNet


Fire"ball` noun
Definitions
  1. (Mil.) A ball filled with powder or other combustibles, intended to be thrown among enemies, and to injure by explosion; also, to set fire to their works and light them up, so that movements may be seen.
  2. A luminous meteor, resembling a ball of fire passing rapidly through the air, and sometimes exploding. large mass of fire caused by a large explosion, as of inflammable liquids or a nuclear explosion

Webster 1913