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ball lightning

a rare form of lightning, consisting of a bright, luminous ball that moves rapidly along objects or floats in the air.
Also called globe lightning.
Origin of ball lightning
1855-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for ball-lightning
Historical Examples
  • The mergers of ball-lightning and meteorites are not resistances to us: our data are of enormous bodies.

    The Book of the Damned Charles Fort
British Dictionary definitions for ball-lightning

ball lightning

(meteorol) a luminous electrically charged ball occasionally seen during electrical storms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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ball-lightning in Science
ball lightning  
A rare form of lightning in the shape of a glowing red ball, associated with thunderstorms and sometimes accompanied by a loud noise. Ball lightning is thought to consist of ionized gas.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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