laughing gas

Definition

Nitrous oxide, especially when used as an anaesthetic.

Etymology

From its euphoric effects. Coined by British chemist Humphry Davy in 1799.

Example Sentences

• ""You know how matters stand, dear," said he. "I have explained it also to our friends here. You're not afraid are you?" "It won't be painful, George?" "No more than laughing-gas at the dentist's.""
• "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"