exhilarating gas

noun

Roget 376: insensibility, physical insensibility; obtuseness etc. adj.; palsy, paralysis, paraesthesia [Med.], anaesthesia; sleep etc. 823; hemiplegia^†, motor paralysis; vegetable state; coma.    anaesthetic agent, opium, ether, chloroform, chloral; nitrous oxide, laughing gas; exhilarating gas, protoxide of nitrogen; refrigeration.    ... show more

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