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- Tornado, a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or the base of a cumulus cloud. A twister, whirlwind or cyclone. Meteorology. Mouse Pad #642130046
Tornado, a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or the base of a cumulus cloud. A twister, whirlwind or cyclone. Meteorology. Mouse Pad #642130046