| 单词 | nitrous |
| 释义 | nitrous adj. of, like, or impregnated with nitrogen, esp. in the tervalent state. Phrases and idioms nitrous acid a weak acid existing only in solution and in the gas phase. Usage Chem. formula: HNO2 nitrous oxide a colourless gas used as an anaesthetic (= laughing-gas) and as an aerosol propellant. Usage Chem. formula: N2O Etymology: L nitrosus (as NITRE), partly through F nitreux |
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