Phrase guide

nitrous oxide

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

A nonflammable gas commonly used in surgery and dentistry for its anaesthetic and analgesic effects and in motorsport for bursts of added power.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences

Examples

  • Holonym: gas and air

Meaning relationships

Synonyms: laughing gas, dinitrogen oxide, dinitrogen monoxide, mul:E942, nos, nox, hippy crack

Antonyms: none provided

Broader terms: NOx, nitrogen oxide, oxide, compound, substance, material

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: laughing gas

Antonyms: none provided

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

History

Etymology

No etymology was provided for this word.

Across languages

Translations

24 source translations are retained for this English entry.

  • Catalan: òxid nitrós — nitrous oxide
  • Chinese Mandarin: 一氧化二氮 (yīyǎnghuà'èrdàn) — nitrous oxide
  • Chinese Mandarin: 氧化亞氮 /氧化亚氮 (yǎnghuàyàdàn) — nitrous oxide
  • Czech: oxid dusný — nitrous oxide
  • Finnish: typpioksiduuli — nitrous oxide
  • Finnish: dityppioksidi — nitrous oxide
  • French: protoxyde d'azote — nitrous oxide
  • German: Distickstoffmonoxid — nitrous oxide
  • Greek: υποξείδιο του αζώτου (ypoxeídio tou azótou) — nitrous oxide
  • Hungarian: dinitrogén-oxid — nitrous oxide
  • Hungarian: dinitrogén-monoxid — nitrous oxide
  • Hungarian: kéjgáz — nitrous oxide
  • Hungarian: nevetőgáz — nitrous oxide
  • Japanese: 亜酸化窒素 (asanka chisso) — nitrous oxide
  • Polish: podtlenek azotu — nitrous oxide
  • Polish: gaz rozweselający — nitrous oxide
  • Portuguese: óxido nitroso — nitrous oxide
  • Portuguese: gás hilariante — nitrous oxide
  • Portuguese: gás do riso — nitrous oxide
  • Russian: за́кись азо́та (zákisʹ azóta) — nitrous oxide
  • Slovak: oxid dusný — nitrous oxide
  • Spanish: óxido nitroso — nitrous oxide
  • Thai: ไนตรัสออกไซด์ (nai-dtrâs-ɔ́k-saai) — nitrous oxide
  • Turkish: nitröz oksit — nitrous oxide