Nitrous Oxide
Synonyms
Gas, Laughing
Laughing Gas
Nitrogen Protoxide
Nitrogen oxide (N2O)
Oxide, Nitrous
Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.