n. A flash of lightning with the accompanying crash of thunder: so called because regarded as due to the hurling of a bolt or shaft at the object struck by the lightning. See def. 2.n. The imaginary bolt or shaft (often regarded as a stone) conceived as the material agent or substance of a flash of lightning, and the cause of the accompanying crash of thunder: an attribute of Zeus or Jupiter as the god of thunder (Jupiter Tonans); specifically, in heraldry, a bearing representing a thunderbolt more or less like that of Jupiter.n. A stone or other hard concretion of distinctive shape, usually tapering or spear-like, found in the ground, and supposed in popular superstition to have been the material substance of a thunderbolt (in sense 2), and to have fallen from heaven with the lightning.n. Figuratively, one who is daring or irresistible; one who acts with fury or with sudden and resistless force.n. A dreadful threat, denunciation, censure, or the like, proceeding from some high authority; a fulmination.n. plural The white campion (Lychnis vespertina), the corn-poppy (Papaver Rhœas), or the bladder-campion (Silene Cucubalus)—the last so named from the slight report made by exploding the inflated calyx.To strike with or as with lightning.