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nitrous oxide
(redirected from Happy gas)

    Also found in: Medical, Encyclopedia, Wikipedia 0.43 sec.

nitrous oxide

Colourless, nonflammable gas that, used in conjunction with oxygen, reduces sensitivity to pain. In higher doses it is an anaesthetic. Well tolerated, it is often combined with other anaesthetic gases to enable them to be used in lower doses. It may be self-administered; for example, in childbirth. It is a greenhouse gas; about 10% of nitrous oxide released into the atmosphere comes from the manufacture of nylon. It used to be known as ‘laughing gas’.

According to the US Environmental Protection Agency (EPA) in 1998, nitrous oxide is responsible for more than 7% of the warming effect of US greenhouse gas emissions. Nitrous oxide emissions increased in the USA by 23% 1990–96.



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? Mentioned in ? References in periodicals archive
 
some happy gas before reviewing "Juno," so maybe all these pros falling over themselves about the film is reason enough to go see it now that it's finally opening in our area.
On screen, in `Juno' we trust by The Register-Guard (Eugene, OR)
Once we give children the happy gas they relax, and it helps reduce anxiety because they are awake throughout.
Pioneering clinic helps to ease pain of visiting dentist by Daily Post (Liverpool, England)
There's no need to applaud wildly or pump happy gas into the auditorium - sit in
WITT MATES LIKE THESE. by The Mirror (London, England)
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