noun Chemistry, Pharmacology.
Origin of nitrous oxide
Examples from the Web for nitrous oxide
In 1844, Horace Wells, a native of Vermont, discovered that the inhalation of nitrous-oxide gas produces anaesthesia.Stories Of Georgia|Joel Chandler Harris
It was then and not until then that the nitrous-oxide plant began running at anything like its real capacity.With the Doughboy in France|Edward Hungerford
To him is to be credited the first operation ever performed without pain by the use of nitrous-oxide gas.An Epitome of the History of Medicine|Roswell Park