English Lexicon

Outgas

/ˈaʊtˌɡæs/
verbCEFR C1 (Advanced)Top #15000 frequency
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Comprehensive Definitions & Senses

2 senses
As verb
  1. 1

    To release gas from a material, especially during heating or processing.

    "The new paint must outgas for several days before it can be safely used indoors."
  2. 2

    To remove gas from a substance, typically in a vacuum environment.

    "The laboratory equipment was designed to outgas the samples to ensure accurate measurements."

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Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'outgas' is derived from the combination of 'out' and 'gas', first appearing in the mid-20th century. It reflects the process of releasing gas from a material, particularly in scientific and industrial contexts, evolving from the broader understanding of gas emissions.

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