1 fireball | Definition of fireball

fireball

noun
fire·​ball | \ ˈfÄ«(-É™)r-ËŒbȯl How to pronounce fireball (audio) \

Definition of fireball

1 : a ball of fire also : something resembling such a ball the primordial fireball associated with the beginning of the universe Scientific American
2 : a brilliant meteor that may trail bright sparks
3 : the highly luminous cloud of vapor and dust created by a nuclear explosion
4 : a highly energetic person