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[thuhn-der-kloud] /ˈθʌn dərˌklaʊd/
Also, thunderclouds.
Origin of thundercloud
1690-1700; thunder + cloud Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for thundercloud
  • Against the grey rock of the kopjes it showed no more than a crow against a thundercloud.
  • Atmospheric scientists know that ice particles in a thundercloud become slightly charged.
  • They observed five jets spreading outwards and upwards from the thundercloud.
  • When many small pieces of these frozen raindrops collide with each other in a thundercloud, they create an electrical charge.
  • Positive strikes are less common and come from the higher regions of the thundercloud.
  • Guide discussion of the party, the scowling thundercloud piñata and their efforts to break it.
British Dictionary definitions for thundercloud


a towering electrically charged cumulonimbus cloud associated with thunderstorms
anything that is threatening
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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thundercloud in Science
See cumulonimbus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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