A rotating column of air, extending from the base of a cumuliform cloud, and often visible as a condensation funnel in contact with the ground, and/or attendant circulating dust or debris cloud at the ground.
This is just here as a test because I lose it
Term information
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This class refers to tornados on Earth, but can be used as the basis for a more generalised class for tornados which a composed of gaseous materials other than air.
definition
A tornado is an aeroform consisting of at least one rapidly rotating column of air that is in contact with both the surface of an astronomical body and pendant from within or beneath a cumulonimbus or cumulus cloud.