FIREBALL

fireball. Fireball, n. a meteor, a grenade

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Fire″ball′ (?), n. (a) (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. (b) A luminous meteor, resembling a ball of fire passing rapidly through the air, and sometimes exploding.