1. An acronym for emissions of light and very low frequency perturbations due to electromagnetic pulse sources; extremely bright extremely short (less than a msec) electrical flashes forming a huge ring (up to 400 km diameter) in the ionosphere
   "Scientists used high-speed cameras to capture images of elves above thunderstorms"

1. (folklore) fairies that are somewhat mischievous
   "In the story, an elf swapped the farmer's tools for magical ones";
   - hob, gremlin, pixie, pixy, brownie, imp

Type of: atmospheric electricity, faerie, faery, fairy, fay [archaic], sprite

Encyclopedia: Elves