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[gas-tahyt] /ˈgæsˌtaɪt/
not penetrable by a gas.
not admitting a given gas under a given pressure.
Origin of gastight
1825-35; gas + tight
Related forms
gastightness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for gastight
  • After installation all field erected piping shall be tested and proved gastight at maximum operating pressure.
  • Cleanouts shall be easily accessible and shall be gastight and watertight.
  • Common walls to other areas of the building shall be gastight.
  • The structure or portion to be fumigated must be transformed into a gastight fumigation enclosure.
  • Plugs may be designed to be watertight and gastight or to allow drainage and venting of gases.
  • Indirect-recirculating ovens are ovens which are equipped with a gastight duct system, a furnace, and a circulating fan.
  • All joints and connections shall be made gastight and watertight.
British Dictionary definitions for gastight


not allowing gas to enter or escape
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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