American Heritage® Dictionary of the English Language, Fourth Edition
- n. A colorless, sweet-tasting gas, N2O, used as a mild anesthetic in dentistry and surgery.
- n. inorganic chemistry A non-flammable gas (N2O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.
GNU Webster's 1913
- adj. See Laughing gas.
- n. inhalation anesthetic used as an anesthetic in dentistry and surgery
““Reads like author Christopher Moore laughed his head off while writing it, quite possibly taking hits of nitrous oxide between sentences.” —”
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