detector vs demodulator

detector and demodulator both are nouns.

Word	Noun	Adjective	Verb	Adverb
detector	Yes	No	No	No
demodulator	Yes	No	No	No

As nouns, detector and demodulator are synonyms defined as:

detector and demodulator: rectifier that extracts modulation from a radio carrier wave

detector (noun)	demodulator (noun)
any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner	rectifier that extracts modulation from a radio carrier wave
electronic equipment that detects the presence of radio signals or radioactivity
rectifier that extracts modulation from a radio carrier wave