Definition of breath test in US English:
 breath test
nounˈbrɛθ ˌtɛstˈbreTH ˌtest
A test in which a driver is made to blow into a breathalyzer to check the amount of alcohol that has been drunk.
 he lost his driving licence for a year for failing to give a breath test
 Example sentencesExamples
-  So perhaps there needs to be a system of judging, similar to a breath test…
 -  A request was then made by an officer, pursuant to section 2, for a breath test.
 -  She failed a roadside breath test and agreed to go to the police station for a second test.
 -  It was the police who put the car keys in the hands of a man registering a .21 on a breath test.
 -  In those circumstances the request for a breath test was valid and the appellant was properly arrested.
 -  One of the officers then formed the opinion that he had been drinking and requested him to provide a specimen for a breath test.
 -  The breath test became the accepted method for establishing the blood-alcohol level of suspected drunk drivers.
 -  The House held that failure to comply with the instructions in relation to a roadside breath test did not invalidate the test.
 -  Authorities said a breath test administered at a police station showed a blood-alcohol reading of .08 percent.
 -  Police believe he became involved in an argument with a motorist he tried to give a breath-test.
 -  For control drivers we obtained contact details and results of a breath test for alcohol at the roadside recruitment sites.
 -  The idea that that a PC might transmit on his radio whilst his partner was administering the breath test was frowned upon.
 -  The cut-off value for the breath test was set at five parts per 1000.
 -  Anyone who fails the test is arrested and is required to perform an evidential breath test at a police station.
 -  The police did contact the solicitor at the first opportunity after the breath test was completed.
 -  That is the context in the present case: a policeman reporting to another policeman about the results of a breath test.
 -  But when they caught me for speeding, they automatically gave me a breath test.
 -  The Constable stated that he saw the man get out of the vehicle and provide a positive breath test.
 -  At the roadside the respondent was asked to provide a specimen of breath for a breath test.
 
verbˈbrɛθ ˌtɛstˈbreTH ˌtest
[with object]Give (someone) a breathalyzer test.
 the police asked to breath-test him
 Example sentencesExamples
-  Does that mean cops don't need to breath test anyone anymore?
 -  I can always get you breath-tested in the morning.
 -  The current approach of wanting to breath test every driver once a year may have to be reviewed.
 -  The police failed to either breath-test him or arrange for a blood test.
 -  He also said the NSC welcomed new laws that would make it easier for gardaí to stop and breath-test drivers.