nitrous oxide
noun
Definitions
A non-flammable gas (N₂O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.
Synonyms:E942dinitrogen monoxidedinitrogen oxidehippy cracklaughing gas
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Definitions
A non-flammable gas (N₂O) commonly used in surgery and dentistry for its anaesthetic and analgesic effects.