al·​com·​e·​ter al-ˈkä-mə-tər How to pronounce alcometer (audio)
plural alcometers
: a device used by police to measure the alcohol content in a breath sample in order to determine if a person is legally drunk
… a police alcometer indicated alcohol had been detected on his breathJennifer Cooke, Sydney (Australia) Morning Herald, 14 Mar. 2009
compare breathalyzer

Word History


formerly a registered trademark

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of alcometer was in 1941

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Dictionary Entries Near alcometer

Cite this Entry

“Alcometer.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

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