Laughing gas Meaning, Definition & Usage
-
noun inhalation anesthetic used as an anesthetic in dentistry and surgery
nitrous oxide.
WordNet
Definitions
- . See under
Laughing .
Definitions
(Chem.) , hyponitrous oxide, or protoxide of nitrogen= nitrous oxide ; so called from the exhilaration and laughing which it sometimes produces when inhaled. It is much used as an anæsthetic agent.now primarily in dentistry