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.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000758
Anesthesia
A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.
D000776
Anesthesiology
A specialty concerned with the study of anesthetics and anesthesia.