breathalyzer

English

Alternative forms

Etymology

Blend of breath + analyzer. Originally a trademark of Smith & Wesson.

Noun

breathalyzer (plural breathalyzers)

  1. 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.

Usage notes

Often capitalized.

Translations

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