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air pocket

(not in technical use) a nearly vertical air current that can cause an aircraft to experience a sudden change in altitude, usually a decrease.
Also called air hole.
Origin of air pocket
1910-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for air pocket
  • Water was up to the ceiling tiles, but there was an air pocket in the crawl space.
  • But the air pocket left pollutants with no escape route.
  • The low-pressure air pocket then pulls the blade toward it, causing the rotor to turn.
  • As the air in the claw hook is compressed by the rotation of the claw, it is transformed into a high-pressure air pocket.
  • Prior to nets being deployed, a bullet float was placed in the cod end of each net to provide an air pocket.
  • The air pocket prevented the inadvertent killing of non-targeted species, such as turtles.
  • Plunging breakers have a curling crest that moves over an air pocket.
  • The five-foot concrete dam was built with an overhanging metal lip that creates a dead air pocket under the waterfall.
  • At the end of the process, the compressed air pocket expands, carrying excess preservative from the wood.
  • Check static head to determine if it is sufficient to push air pocket back to pumps, and check volume of gas pocket.
British Dictionary definitions for air pocket

air pocket

a localized region of low air density or a descending air current, causing an aircraft to suffer an abrupt decrease in height
any pocket of air that prevents the flow of a liquid or gas, as in a pipe
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
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