superbolt noun1 •(rare) A rare form of lightning where the bolt is much stronger (such as 100x) and lasts much longer (such as 5x) than the usual forms of lightning.A typical lightning bolt has an optical power of about 1 billion watts. The superbolt flashes radiate 100 billion to 10 trillion (10¹¹)-(10¹³) watts. They are quite rare. — 1979 formssuperbolts
