kugelblitz

See also: Kugelblitz

English

Etymology

German Kugelblitz (“ball lightning”).

Noun

kugelblitz (plural kugelblitzes)

1. (theoretical physics) A concentration of light so intense that it forms an event horizon and becomes self-trapped, forming a black hole.
   • 2022, N. K. Jemisin, The World We Make, Orbit, page 303:

     Specifically, what she’s talking about is called a kugelblitz—a kind of black hole formed not from the collapse of matter, but from an overwhelming intensity of heat or radiation...or light.