Home › Words › S › sfericsfericsferic · noun — A short pulse of electromagnetic radiation produced by lightning.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, sferic ranks #1,186 of 43,042 for Qualifying.EtymologyFrom atmospherics.nounA short pulse of electromagnetic radiation produced by lightningDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.sferics 82% match — Electromagnetic pulses caused by atmospheric phenomena, such as lightning. plural of sferic vs sferic →atmospherics 62% match — radio interference caused by pulses of electromagnetic radiation in the atmosphere as the result of lightning and other events (both natural and man-made) vs sferic →elve 59% match — A rapidly expanding disk-shaped region of red luminosity in the ionosphere, lasting less than a thousandth of a second, which occurs high above energetic cloud-to-ground lightning of positive or negative polarity. vs sferic →blitzar 58% match — A phenomenon that emits a fast radio burst. vs sferic →fulgury 57% match — lightning vs sferic →fulguration 56% match — A flash of lightning vs sferic →rayburst 55% match — A burst of high-energy radiation (such as gamma rays) vs sferic →gyrosynchrotron 55% match — Describing electromagnetic radiation emitted by charged particles moving at close to light speed in a magnetic field vs sferic →