drunkometer

[druhng-kom-i-ter]
noun
  1. a device for measuring the amount of alcohol in a person's breath to determine the amount of alcohol in the bloodstream.

Origin of drunkometer

An Americanism dating back to 1930–35; drunk + -o- + -meter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018