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Nitrous oxide
noun
Word Frequency:
1.6
Definitions
1.
noun
A non-flammable gas (N₂O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.
Synonyms
E942
dinitrogen monoxide
dinitrogen oxide
hippy crack
laughing gas
nitrous air
nitrogen oxide
nitrox
dinitrogen trioxide
nitric oxide
nitrogen dioxide
nitro
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