Meaning of DETECTOR in English

noun one who, or that which, detects; a detecter.

2. detector ·add. ·noun an indicator showing the depth of the water in a boiler.

3. detector ·add. ·noun any of various devices for detecting the presence of electric waves.

4. detector ·add. ·noun a galvanometer, usually portable, for indicating the direction of a current.

Webster English vocab.      Английский словарь Webster.