laughing gas

Nitrous oxide, otherwise known as laughing gas, gives one an exhilarating feeling while operating as an anesthetic.

It felt like laughing gas or dopamine had been pumped into the car.

He had a bouyant sensation like a person taking laughing gas.

You give 'em some sort of laughing-gas; but me, I'm of a retiring disposition, and I never could force myself on nobody.

After our summer at Monomoy in the sea air, we need an atmosphere of ozone, not of laughing gas.

Johnnie felt as if she had taken a dose of laughing-gas, at the sight of twenty boys and girls all at once, real boys, real girls!

The oxide of nitrogen so formed is called nitrous oxide or laughing gas.