|Systematic name: dinitrogen oxide, Also called: laughing gas a colourless nonflammable slightly soluble gas with a sweet smell: used as an anaesthetic in dentistry and surgery. Formula: N2O|
nitrous oxide n.
A colorless sweet-tasting gas used as a mild anesthetic in dentistry and surgery.
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.