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The Collaborative International Dictionary
breathalyzer

breathalyzer \breathalyzer\ n. [a Trademark.] a device that measures alcohol content of a person's breath.

Syn: breathalyser, breath analyzer.

Douglas Harper's Etymology Dictionary
breathalyzer

1960, from breath + (an)alyzer; an earlier name for it was drunkometer (1934).

Wiktionary
breathalyzer

alt. A device that measures alcohol in expired air so as to estimate the concentration of alcohol in a person's blood; used by traffic police in cases of suspected driving while under the influence of alcohol. n. A device that measures alcohol in expired air so as to estimate the concentration of alcohol in a person's blood; used by traffic police in cases of suspected driving while under the influence of alcohol.

WordNet
breathalyzer

n. a device that measures chemicals (especially the alcohol content) in a person's expired breath [syn: breathalyser]

Wikipedia
Breathalyzer

A breathalyzer or breathalyser (a portmanteau of breath and analyzer/analyser) is a device for estimating blood alcohol content (BAC) from a breath sample. Breathalyzer is the brand name (a genericized trademark) for the instrument that tests the alcohol level developed by inventor Robert Frank Borkenstein. It was registered as a trademark on May 13, 1954, but many people use the term to refer to any generic device for estimating blood alcohol content .

Usage examples of "breathalyzer".

He pulled off at the clinic, left Otto with them while they got patched up and went back to the station for a Breathalyzer.

Working out the solution in his head, he carted the Breathalyzer back to the clinic.

Or the fact that the investigating officer hadn't bothered to give Halleck a breathalyzer test after he'd seen who the driver was (and who the victim was).

My best guess is that if Tom Rangely had given you the breathalyzer, that little balloon would have floated straight up to heaven.

And you'd need a damn Breathalyzer machine to know she hadn't been sipping Bosco.

Several years ago the department had begun taping all breathalyzer tests to avoid legal-defense strategies based on procedural mistakes made by arresting officers during testing.

A well-run cop stop with breathalyzers and making everybody get out of the car to find out if he can walk a straight line should hold the vultures in place for a least a half hour, so all five limos get away clean.