A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.

Usage

See Special:Whatlinkshere/Etymology:Tornado for a list of articles using this term.

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This is an etymology page: a page detailing the origins of terminology used in the series in regards to real world culture and history.
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