random breath test Meaning in the Cambridge English Dictionary
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Meaning of “random breath test” in the English Dictionary

"random breath test" in British English

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random breath testnoun [C]

uk   us   (abbreviation RBT) Australian English
a ​test given by the ​police to ​driverschosen by ​chance, to ​measure the ​amount of ​alcohol the ​drivers have in ​theirblood
(Definition of random breath test from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
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