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updraught

British  
/ ˈʌpˌdrɑːft /

noun

  1. an upward movement of air or other gas

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The result is that the water which ascends in the equatorial updraught becomes what we may term fuel to promote this important element in the earth's aërial circulation.

From Outlines of the Earth's History A Popular Study in Physiography by Shaler, Nathaniel Southgate

When the moisture-laden air starts on its upward journey from the earth it has, by virtue of the watery vapour which it contains, a store of energy which becomes applied to promoting the updraught.

From Outlines of the Earth's History A Popular Study in Physiography by Shaler, Nathaniel Southgate

The result is that before it begins to ascend in the tropical updraught, being much moisture-laden, the atmosphere stores a good deal of heat.

From Outlines of the Earth's History A Popular Study in Physiography by Shaler, Nathaniel Southgate

In this region the movements of the air are to a great extent under the control of the great continuous updraught.

From Outlines of the Earth's History A Popular Study in Physiography by Shaler, Nathaniel Southgate

Like the hurricanes, they appear to be due to the inrush of relatively warm air entering an updraught which had been formed in the overlying, cooler portions of the atmosphere.

From Outlines of the Earth's History A Popular Study in Physiography by Shaler, Nathaniel Southgate