0 a flash of bright light in the sky that is produced by electricity moving between clouds or from clouds to the ground:
1 a flash of bright light in the sky produced by electricity moving within or between clouds, or between clouds and the ground:
That tree was struck by lightning in a recent thunderstorm.
2 very fast:
Fractals are used in the study of things like forked lightning and to produce some types of computer graphics.
The computer failure was due to a glitch caused by lightning.
The lightning had damaged the plane's instruments, and they weren't giving any readings.
A special system prevents the circuitry being tripped accidentally by a power surge or lightning strike.
The lightning came down sideways and struck the octagon drum of his heart.
The thunder and lightning storm is a real one coming across from the mainland.
At discharge in usual lightning, the quantity of matter is approximately 102 tons.
