
1) Breathing gas 2) General anesthetic 3) Laughing gas 4) Vehicle modification
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Nitrous oxide, commonly known as laughing gas, nitrous, nitro, or NOS is a chemical compound with the formula {chem|N|2|O}. It is an oxide of nitrogen. At room temperature, it is a colourless, non-flammable gas, with a slightly sweet odour and taste. It is used in surgery and dentistry for its anaesthetic and analgesic effects. It is known as `la....
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http://en.wikipedia.org/wiki/Nitrous_oxide

one of several oxides of nitrogen, a colourless gas with pleasant, sweetish odour and taste, which when inhaled produces insensibility to pain ... [12 related articles]
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http://www.britannica.com/eb/a-z/n/45

N2O Molar mass: 44.0128
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(N2O ) Also known as dintrogen oxide or laughing gas, a colorless gas with a sweet smell that is used as an anesthetic and an aerosol propellant. Nitrous oxide is soluble in water, ethanol, and sulfuric acid. On heating above 520°C, it is decomposed to...
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http://www.daviddarling.info/encyclopedia/N/nitrous_oxide.html

<chemical> Nitrogen oxide (n2o). A colourless, odourless gas that is used as an anaesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream. ... Pharmacological action: aerosol propellants, analgesics, non-narco...
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http://www.encyclo.co.uk/local/20973

a colorless, odorless gas that is a weak inhalational anesthetic, usually used in combination with a potent halogenated inhalational anesthetic to produce general anesthesia or briefly for dental surgery. Its use as a sole agent requires high concentrations that may cause hypoxia. Abuse poses the risk of anoxic death from asphy...
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http://www.encyclo.co.uk/local/21001

A controlled mixture of nitrogen and oxygen gases (N2O) that is inhaled by the patient in order to d
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http://www.encyclo.co.uk/local/22411

Type: Term Pronunciation: nī′trŭs oks′īd Definitions: 1. a nonflammable, nonexplosive gas that will support combustion; widely used as a rapidly acting, rapidly reversible, nondepressant, and nontoxic inhalation analgesic to supplement other anesthetics and analgesics; its anesthetic potency alone at normal atmospheric pr...
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http://www.medilexicon.com/medicaldictionary.php?t=60559

Gas found in the atmosphere that contributes to the greenhouse effect. Sources for nitrous oxide include: land-use conversion; fossil fuel combustion; biomass burning; and soil fertilization. Chemical formula for nitrous oxide is N
2O.
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http://www.physicalgeography.net/physgeoglos/n.html

A colorless, sweet-tasting gas that exhibits a pleasing smell when inhaled. The gas is often used as an anesthetic to help individuals remain calm and reduce pain during medical procedures or childbirth. Synonym(s): Laughing Gas
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Nitrous oxide (laughing gas) is an odourless, non-explosive, toxic analgesic gas. It causes exhilaration, insensibility, analgesia, delirium and loss of motor control (which makes its use in pregnancy labour rather questionable), elation and excitement. It has a quick action and is used for short operations, such as the removal of teeth.
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(N2O) a potent greenhouse gas produced primarily in agriculture, particularly by the livestock sector.
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[
n] - inhalation anesthetic used as an anesthetic in dentistry and surgery
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http://www.webdictionary.co.uk/definition.php?query=nitrous%20oxide

a gas produced when chemicals in human-produced fertilizers break down in the soil text
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https://sciencetrek.org/sciencetrek/topics/climate/glossary.cfm

An anaesthetic. Symbol N
2O Also known as Laughing gas
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https://www.encyclo.co.uk/local/20687
laughing gas noun inhalation anesthetic used as an anesthetic in dentistry and surgery
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https://www.encyclo.co.uk/local/20974

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% ...
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https://www.encyclo.co.uk/local/21221
(N2O) A powerful greenhouse gas with a global warming potential of 296 times that of carbon dioxide (CO2). Major sources of nitrous oxide include soil cultivation practices, especially the use of commercial and organic fertilizers, fossil fuel combustion, nitric acid production, and biomass burning.
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https://www.encyclo.co.uk/local/22831

a colorless, sweet-smelling, sweet-tasting, nonflammable, slightly water-soluble gas, NO, that sometimes produces a feeling of exhilaration when inhaled: used chiefly as an anesthetic in dentistry and surgery, in the manufacture of chemicals, and as an aerosol. Also called
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https://www.infoplease.com/dictionary/nitrous-oxide
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