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Definitions

nitrous oxide

NOUN
laughing gas
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The centers are also adding nitrous oxide, or laughing gas, for intrauterine device insertions.

From The Wall Street Journal • Mar. 1, 2026

"At these higher water levels, methane and nitrous oxide emissions were also low, giving a much better overall gas balance. Under such conditions, the field even absorbed slightly more CO2 than it released," says Zhao.

From Science Daily • Feb. 22, 2026

Meanwhile, fertiliser use emits nitrous oxide -- the third-most-potent greenhouse gas after methane and carbon dioxide.

From Barron's • Nov. 11, 2025

Ye has since sued his dentist for "recklessly" supplying Ye with "dangerous amounts of nitrous oxide".

From BBC • May 27, 2025

Chlorine is green and is deadly; nitrous oxide is colorless and makes people giggle.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife