demodulator vs detector

demodulator and detector both are nouns.

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

As nouns, demodulator and detector are synonyms defined as:

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

demodulator (noun)	detector (noun)
rectifier that extracts modulation from a radio carrier wave	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
	electronic equipment that detects the presence of radio signals or radioactivity
	rectifier that extracts modulation from a radio carrier wave