Phrase guide

laughing gas

noun · 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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No pronunciation record was provided for this word.

1

noun

Meaning 1

Nitrous oxide, especially when used as an anaesthetic.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Examples

  • ETSC’s Belgian member VIAS institute is calling for the development of a breath test to detect when a driver has consumed nitrous oxide, known as ‘laughing gas’. Call for breath tests to detect drivers under the influence of nitrous oxide, ETSC, 20 February 2024

Meaning relationships

Synonyms: laughy gas

Antonyms: none provided

2

noun

Meaning 2

inhalation anesthetic used as an anesthetic in dentistry and surgery

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: nitrous oxide

Antonyms: none provided

Broader terms: inhalation anesthetic, inhalation anaesthetic, inhalation general anesthetic, inhalation general anaesthetic

History

Etymology

From its euphoric effects. Coined by British chemist Humphry Davy in 1799.

Across languages

Translations

29 source translations are retained for this English entry.

  • Afrikaans: laggas — common name for nitrous oxide
  • Catalan: gas del riure — common name for nitrous oxide
  • Chinese Cantonese: 笑氣 /笑气 (siu3 hei3) — common name for nitrous oxide
  • Chinese Mandarin: 笑氣 /笑气 (xiàoqì) — common name for nitrous oxide
  • Finnish: ilokaasu — common name for nitrous oxide
  • French: gaz hilarant — common name for nitrous oxide
  • German: Lachgas — common name for nitrous oxide
  • Hungarian: nevetőgáz — common name for nitrous oxide
  • Hungarian: kéjgáz — common name for nitrous oxide
  • Italian: ossido di diazoto — common name for nitrous oxide
  • Italian: protossido di azoto — common name for nitrous oxide
  • Japanese: 笑気 (shōki) — common name for nitrous oxide
  • Kazakh: шаттандырғыш газ (şattandyrğyş gaz) — common name for nitrous oxide
  • Polish: gaz rozweselający — common name for nitrous oxide
  • Romanian: gaz ilariant — common name for nitrous oxide
  • Russian: веселя́щий га́з (veseljáščij gáz) — common name for nitrous oxide
  • Slovak: rajský plyn — common name for nitrous oxide
  • Spanish: gas hilarante — common name for nitrous oxide
  • Spanish: gas de la risa — common name for nitrous oxide
  • Swedish: lustgas — common name for nitrous oxide
  • Thai: ก๊าซหัวเราะ (gáas-hǔua-rɔ́) — common name for nitrous oxide
  • Thai: แก๊สหัวเราะ (gɛ́ɛs-hǔua-rɔ́) — common name for nitrous oxide
  • Turkish: diazot monoksit — common name for nitrous oxide
  • Turkish: güldürücü gaz — common name for nitrous oxide
  • Turkish: nitröz oksit — common name for nitrous oxide
  • Ukrainian: нітроге́н (nitrohén) — common name for nitrous oxide
  • Ukrainian: окси́д (oksýd) — common name for nitrous oxide
  • Ukrainian: окси́д азо́ту (oksýd azótu) — common name for nitrous oxide
  • Vietnamese: khí cười — common name for nitrous oxide