• synonyms


verb (used with object), de·gassed, de·gas·sing.
  1. to free from gas.
  2. Electronics. to complete the evacuation of gases in (a vacuum tube).
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Origin of degas

First recorded in 1915–20; de- + gas
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for degassing


verb -gases, -gasses, -gassing or -gassed
  1. (tr) to remove gas from (a container, vacuum tube, liquid, adsorbent, etc)
  2. (intr) to lose adsorbed or absorbed gas by desorption
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Derived Formsdegasser, noun


  1. Hilaire Germain Edgar (ilɛr ʒɛrmɛ̃ ɛdɡar). 1834–1917, French impressionist painter and sculptor, noted for his brilliant draughtsmanship and ability to convey movement, esp in his studies of horse racing and ballet dancers
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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