from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless, sweet-tasting gas, N2O, used as a mild anesthetic in dentistry and surgery.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A non-flammable gas (N2O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.
from the GNU version of the Collaborative International Dictionary of English
- adj. See Laughing gas.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. inhalation anesthetic used as an anesthetic in dentistry and surgery
Sorry, no etymologies found.