Wall Cloud Definition
noun
A rapidly rotating, disk-shaped cloud with sloped sides, usually from 1.5 kilometers (0.9 miles) to 6.5 kilometers (4 miles) in diameter, descending from a cumulonimbus cloud associated with a powerful thunderstorm. Tornadoes typically form beneath wall clouds.
American Heritage
Other Word Forms of Wall Cloud
Noun
Singular:
wall cloud
Plural:
wall clouds
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