Nitrous-oxide definitions

A colorless, sweet-tasting gas, N2 O, used as a mild anesthetic in dentistry and surgery.
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A colorless, nonflammable gas, N2O, used as an anesthetic and in aerosols.
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A colorless, sweet-tasting gas, N2 O, used as a mild anesthetic in dentistry and surgery.
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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.
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(inorganic chemistry) A non-flammable gas (N2O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.
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