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laughing gas

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
gas (gas) any elastic aeriform fluid in which the molecules are separated from one another and so have free paths.gas´eous
alveolar gas  the gas in the alveoli of the lungs, where gaseous exchange with the capillary blood takes place.
blood gases  the partial pressures of oxygen and carbon dioxide in blood; see under analysis.
coal gas  a gas, poisonous because it contains carbon monoxide, produced by destructive distillation of coal; much used for domestic cooking.
laughing gas  nitrous oxide.
tear gas  one which produces severe lacrimation by irritating the conjunctivae.

laugh·ing gas (lfng)
n.
Nitrous oxide, especially as used as an anesthetic.

laughing gas
[laf′ing]
Usage notes: informal.
nitrous oxide, a side effect of which is laughter or giggling when administered in low doses.

gas,
n a fluid with no definite volume or shape whose molecules are practically unrestricted by cohesive forces.
gas, laughing,
gas, noble,
n a gas that will not oxidize; the inert gases (e.g., helium and neon).
gas, olefiant,
n a machine that uses ethylene oxide gas to sterilize objects that cannot withstand high temperatures, such as soft plastic and cloth.

laughing gas
nitrous oxide.


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Nitrous oxide, also known as laughing gas, is an odorless gas used by dentists as a painkiller, but when abused, it can be as dangerous as any other inhalant.
Nitrous oxide, also known as laughing gas, is an odorless gas used by dentists as a painkiller, but when abused, it can be as dangerous as any other inhalant.
The rocket motor is also unconventional: It uses nitrous oxide - laughing gas - and rubber.
 
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