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.
© Webster 1913
Fire"ball`, n.
Ball, or globular, lightning.
© Webster 1913