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downdraft
(redirected from Downdrafts)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
downdraft [′dau̇n‚draft]
(physics)
A current of air or other gas that travels downward, as during a thunderstorm or in a mine shaft.

downdraft, Brit. downdraught
1. A downward current of air in a chimney or flue, often carrying smoke with it.
2. A downward current of air resulting from the passage of air across a window surface, which cools it and increases its density so that it moves downward.


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Large-scale downdrafts, like those over Earth's deserts, are dry because the moisture falls out in the neighboring updraft regions, Ingersoll explains.
 
 
 
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