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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.

But excessive tonnages of carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride are changing Earth’s climate.

From The Wall Street Journal • Feb. 24, 2026

Additional surplus nitrogen in soil can produce nitrous oxide, a potent greenhouse gas.

From Science Daily • Nov. 24, 2025

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