(1):
(n.) A belemnite, or thunderstone.
(2):
(n.) A shaft of lightning; a brilliant stream of electricity passing from one part of the heavens to another, or from the clouds to the earth.
(3):
(n.) Something resembling lightning in suddenness and effectiveness.
(4):
(n.) Vehement threatening or censure; especially, ecclesiastical denunciation; fulmination.