Definition of breathalyze verb from the Oxford Advanced American Dictionary

 

breathalyze

 verb
verb
NAmE//ˈbrɛθəˌlaɪz//
 
[usually passive]breathalyze somebodyVerb Forms present simple I / you / we / they breathalyze he / she / it breathalyzes past simple breathalyzed -ing form breathalyzing
 
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to check how much alcohol a driver has drunk by making him or her breathe into a breathalyzer Both drivers were breathalyzed at the scene of the accident.