Meaning of DETECTOR in English

DETECTOR

de ‧ tec ‧ tor AC /dɪˈtektə $ -ər/ BrE AmE noun [countable]

a machine or piece of equipment that finds or measures something:

a smoke detector

a metal detector

⇨ ↑ lie detector

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.