Breathalyzer definition

Breathalyzer

Topics Breathalyzer Definition

WordNet

(1) A device that measures chemicals (especially the alcohol content) in a person's expired breath

WiktionaryText

A portmanteau word from breath and analyzer. Originally a trademark of Smith & Wesson.

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 over the limit.