✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

breath test

noun

: a test that is used by the police to measure how much alcohol a person has drunk

Examples of breath test in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The device is attached to the vehicle, and drivers must submit a breath test to determine sobriety before the vehicle will start. Brian Sherrod, CBS News, 20 Nov. 2025 He has twice been charged with tampering with an ignition interlock device, which requires a breath test before a vehicle can be driven. Kansas City Star, 12 Nov. 2025 Troopers say that Daveiga refused to take a portable breath test, which determines blood alcohol. Flint McColgan, Boston Herald, 7 Nov. 2025 He’s been doing a voluntary breath test for the past three months and hasn’t failed one. David Goodhue october 24, Miami Herald, 24 Oct. 2025 Another breath test 20 minutes later found a blood alcohol level of 0.096. Arkansas Online, 20 Oct. 2025 Officers smelled alcohol on his breath, and a preliminary breath test resulted in a .06 BAC reading, the complaint says. Nick Ferraro, Twin Cities, 29 Sep. 2025 Police used the breath test on Pennington's group after seeing alcohol cans in the vehicle, the court record said. Elena Santa Cruz, AZCentral.com, 27 Sep. 2025 Without probable cause, Windsor could not have forced or compelled a blood test, breath test or urine test, De Bree’s memo said. Angie Dimichele, Sun Sentinel, 16 Aug. 2025

Browse Nearby Words

Cite this Entry

“Breath test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/breath%20test. Accessed 30 Nov. 2025.

Medical Definition

breath test

noun
: a test to detect the presence of one or more substances (such as hydrogen, carbon dioxide, or alcohol) in a person's exhaled breath
breath testing noun
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!