每日一词学英语(124): breathalyser

breathalyser是英式写法，也可以写成美式的breathalyzer，是由breath和analyser混合而成的。(noun) a device used by the police to measure the amount of alcohol in a driver’s breath。酒精测定计。

现在有一种新的酒精测定计，可以用来检测肺癌。A hand-held breathalyser which can detect lung cancer is being developed by scientists, in a breakthrough that could save thousands of lives. (From Telegraph, 30 August 2009: Breathalyser developed for lung cancer)