detector
definition: any device that receives a signal or stimulus and responds to it in a distinctive manner
example: Deer set off my motion detectors.
speech part: noun
synonyms:
sensor
sensing element
definition: electronic equipment that detects the presence of radio signals or radioactivity
example:
speech part: noun
synonyms:
definition: rectifier that extracts modulation from a radio carrier wave
example:
speech part: noun
synonyms:
demodulator