laughing gas

== English == === Alternative forms === laughing-gas (dated) === Etymology === From its euphoric effects. Coined by British chemist Humphry Davy in 1799. === Noun === laughing gas (uncountable) Nitrous oxide, especially when used as an anaesthetic. Synonym: (humorous, rare) laughy gas 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 ==== Translations ==== === Further reading === laughing gas on Wikipedia.Wikipedia