Meaning of DETECTOR in English

DETECTOR

/ dɪˈtektə(r); NAmE / noun

a piece of equipment for discovering the presence of sth, such as metal, smoke, explosives or changes in pressure or temperature :

a smoke detector

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.