Breathalyser
Concise Oxford English Dictionary © 2008 Oxford University Press:
breathalyser /ˈbreθəlʌɪzə(r)/ (N. Amer. trademark Breathalyzer)
▶noun a device used by police for measuring the amount of alcohol in a driver's breath.
– derivatives
breathalyse (US breathalyze) verb.
breathalyse (US breathalyze) verb.
'Breathalyser' also found in these Oxford entries:

