English dictionary



Hint: Question mark (?) is a wildcard. Question mark substitutes one character.

English noun: elves

1. elves (phenomenon) 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


Broader (hypernym)atmospheric electricity









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk