| nitrous oxide n. A colorless, sweet-tasting gas, N2O, used as a mild anesthetic in dentistry and surgery. |
nitrous oxide
n
(Chemistry / Elements & Compounds) a colourless nonflammable slightly soluble gas with a sweet smell: used as an anaesthetic in dentistry and surgery. Formula: N2O Systematic name dinitrogen oxide Also called laughing gas
| nitrous oxide A colorless, sweet-smelling gas. It is used as a mild anesthetic, often called laughing gas. Nitrous oxide occurs naturally in the atmosphere and is a greenhouse gas. Chemical formula: N2O. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  nitrous oxide - inhalation anesthetic used as an anesthetic in dentistry and surgeryinhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic - a gas that produces general anesthesia when inhaled ammonium nitrate - used as an explosive and fertilizer and rocket propellant |
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