Standard Lemma guide

outgas

noun · verb · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Qualifier: materials science

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

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

Definition source: English Wiktionary via Wiktextract

Usage: intransitive, transitive

Qualifier: materials science

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *úd Proto-Germanic *ūt Proto-Germanic *ūt- Old English ūt- Middle English ut- English out- Proto-Indo-European *ǵheh2-der. Ancient Greek χαῦνος (khaûnos) Ancient Greek χάος (kháos)der. Dutch gasbor. English gas English outgas From out- + gas.

Across languages

Translations

1 source translations are retained for this English entry.

  • German: ausgasen — to release gas