laughing gas

noun

: nitrous oxide

Examples of laughing gas in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Whoever put that panel together must have been on laughing gas. — John McPhee, New Yorker, 20 Apr. 2026 Nitrous oxide, also known as laughing gas, produces a feeling of relaxation, laughter and dizziness. — Jess Lander, San Francisco Chronicle, 3 Aug. 2025 The child had come to the practice a few months prior, at 3 years old, and Davis had attempted to use nitrous oxide, also known as laughing gas, to perform the procedure. — Deon J. Hampton, NBC news, 27 Aug. 2025 Is this moving-picture love letter overly sentimental, sloppy to a fault, and slightly more affectionate toward its posthumous subject than a basket of puppies high on laughing gas? — David Fear, Rolling Stone, 5 Sep. 2025 See All Example Sentences for laughing gas

Word History

First Known Use

1818, in the meaning defined above

Time Traveler
The first known use of laughing gas was in 1818

Rhymes for laughing gas

See All Rhymes for laughing gas

Browse Nearby Words

laughing frog
laughing gas
laughing goose
See all Nearby Words

Cite this Entry

“Laughing gas.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laughing%20gas. Accessed 7 Jul. 2026.

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Kids Definition

laughing gas

noun
: nitrous oxide

Medical Definition

laughing gas

noun
: nitrous oxide

More from Merriam-Webster on laughing gas

Britannica.com: Encyclopedia article about laughing gas

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