alcometer

noun
al·​com·​e·​ter | \al-ˈkä-mə-tər \
plural alcometers

Definition of alcometer 

: 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 breath— Jennifer Cooke, Sydney (Australia) Morning Herald, 14 Mar. 2009 — compare breathalyzer

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First Known Use of alcometer

1941, in the meaning defined above

History and Etymology for alcometer

formerly a registered trademark

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The first known use of alcometer was in 1941

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