nitrous+gas
31nitrous oxide — noun Date: 1798 a colorless gas N2O that when inhaled produces loss of sensibility to pain preceded by exhilaration and sometimes laughter, that is used especially as an anesthetic in dentistry and as a fuel, and that is an atmospheric pollutant… …
32gas — 1. A thin fluid, like air, capable of indefinite expansion but convertible by compression and cold into a liquid and, eventually, a solid. 2. In clinical practice, a liquid entirely in its vapor phase at one …
33gas — n 1. ether, vapor, steam; wind, fume, smoke, reek; effluvium, exhalation, eructation, miasma, exhaust, carbon monoxide; nitrous oxide, laughing gas; natural gas, methane, propane, butane, acetyline, ethine; hydrogen, nitrogen, oxygen, helium,… …
34nitrous oxide — /naɪtrəs ˈɒksaɪd/ (say nuytruhs oksuyd) noun a gas, N2O, an oxide of nitrogen, used as an anaesthetic; laughing gas; a greenhouse gas …
35nitrous oxide — noun A non flammable gas (NO) commonly used in surgery and dentistry for its anaesthetic and analgesic effects. Syn: dinitrogen oxide, dinitrogen monoxide, laughing gas, E942, propellant …
36nitrous oxide — ni|trous ox|ide [ˌnaıtrəs ˈɔksaıd US ˈa:k ] n [U] a type of gas used by ↑dentists to reduce pain = ↑laughing gas …
37nitrous oxide — ni|trous ox|ide [ ,naıtrəs ak,saıd ] noun uncount a gas used by doctors and DENTISTS to prevent people from feeling pain during a medical operation: LAUGHING GAS …
38nitrous oxide — Laughing gas, protoxide of nitrogen, exhilarating gas, nitrogen monoxide …
39gas and air — noun A mixture of nitrous oxide and oxygen in the ratio 1:1 commonly used as a mild analgesic and anaesthetic in medicine, particularly during childbirth, for dental procedures, and in emergency medicine. Syn: Entonox …
40nitrous oxide — noun Chemistry a colourless gas with a sweetish odour which produces exhilaration or anaesthesia when inhaled and is used as an anaesthetic. [N2O.] …
