outgas

O1U1T1G2A1S1

verb

To release (gaseous substances) into the air, especially of a polymer material as it is aged or heated.

OriginEnglish gas ← Dutch gas ← Ancient Greek χάος (kháos) →
Scrabble 7
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Meanings

verboutgas (third-person singular simple present outgases or outgasses, present participle outgassing, simple past and past participle outgassed)

present singular third person outgases · present singular third person outgasses · participle present outgassing · participle past outgassed · past outgassed

  1. intransitivetransitivematerials scienceTo release (gaseous substances) into the air, especially of a polymer material as it is aged or heated.
nounoutgas (countable and uncountable, plural outgases or outgasses)

plural outgases · plural outgasses

  1. countableuncountablematerials scienceGaseous substances released into the air, especially from a polymer material as it is aged or heated.

Synonyms & antonyms

Also see
off-gas

Origin

  1. Proto-Indo-European*úd
  2. Proto-Germanic*ūt
  3. Proto-Germanic*ūt-
  4. Old Englishūt-
  5. Middle Englishut-
  6. Englishout-
  7. Proto-Indo-European*ǵʰeh₂-
  8. Ancient Greekχαῦνος (khaûnos)
  9. Ancient Greekχάος (kháos)
  10. Dutchgas
  11. Englishgas
  12. Englishoutgas

From out- + gas.

Full word history & related roots →

Translations

German ausgasen
  • ausgasento release gas
Cite this entry
APA

outgas. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/outgas

MLA

“outgas.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/outgas. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “outgas,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/outgas.

Source: outgas on Wiktionary, CC BY-SA 4.0.