Elve Definition
ĕlv
noun
An extremely dim, short-lived, expanding disk of reddish light found above thunderstorms and believed to be created by electromagnetic pulses from intense lightning.
American Heritage
Origin of Elve
e(mission of) l(ight and) v(ery low-frequency perturbations from) e(lectromagnetic pulse sources)
From American Heritage Dictionary of the English Language, 5th Edition
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