Definition of breathalyser in English:

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Pronunciation: /ˈbrɛθəlʌɪzə/
(also trademarkbreathalyzer)


A device used by police for measuring the amount of alcohol in a driver’s breath: [as modifier]: a breathalyser test proved negative
More example sentences
  • Still, the police insisted that the driver take a breathalyser test.
  • Rather like the roadside breathalyser used on drivers, the portable drug test yields results in a matter of minutes.
  • Police pulled him over and administered a breathalyser test, which he failed.


1960s: blend of breath and analyse, + -er1.

For editors and proofreaders

Line breaks: breath|alyser

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