funnel cloud(redirected from Cold air funnel)
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funnel cloud[′fən·əl ‚klau̇d]
The popular term for the tornado cloud, often shaped like a funnel with the small end nearest the ground.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A tornado, or vortex cloud, extending downward from the parent cloud but not reaching the ground.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved