Laughing gas
Laughing gas noun - Inhalation anesthetic used as an anesthetic in dentistry and surgery.
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Synonyms for Laughing gas
Nitrous oxide is a synonym for laughing gas in inhaled anesthetic topic. In some cases you can use "Nitrous oxide" instead a noun phrase "Laughing gas".
Nitrous oxide
Nitrous oxide noun - Inhalation anesthetic used as an anesthetic in dentistry and surgery.
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Synonyms for Nitrous oxide
Laughing gas is a synonym for nitrous oxide. You can use "Laughing gas" instead a noun phrase "Nitrous oxide".
Both terms in one sentence
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Skip the Anesthetic: Orin has laughing gas/nitrous oxide, but it's for him, not his patients.
Source: Film / Little Shop of Horrors -
Peabody and his bombshell nurse insane by poisoning them with their own nitrous oxide (i.e., "laughing gas") and then tying both of them up in braces and dental floss.
Source: Film / Problem Child - Grant is attempting to make nitrous oxide gas (aka "laughing gas") with Civil War technology.
Source: Hilarious Outtakes aka: Gag Reel
Cite this Source
Nitrous oxide and Laughing gas. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/laughing_gas/nitrous_oxide
Laughing gas & Nitrous oxide. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/laughing_gas/nitrous_oxide>.
Nitrous oxide or Laughing gas. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/laughing_gas/nitrous_oxide.
Google Ngram Viewer shows how "laughing gas" and "nitrous oxide" have occurred on timeline