nitrous oxide

English

Noun

nitrous oxide (uncountable)

  1. (inorganic chemistry) A non-flammable gas (N₂O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects and in motorsport for bursts of added power.
    Synonyms: (anaesthetic) laughing gas, dinitrogen oxide, dinitrogen monoxide, (slang) hippy crack, (propellant) E942, (automotive) nos, (automotive) nox, NOx, N₂O, N2O
    Hypernyms: greenhouse gas, nox, NOx
    • 2024 September 23, Trace William Cowen, “What the Hell Is Galaxy Gas?”, in Complex[1]:
      On social media and beyond, many have taken to using the brand’s name in a more colloquial fashion, with “Galaxy Gas” being used as a catchall for nitrous oxide inhalants at large, regardless of whether they are actually Galaxy Gas products or not.

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