squelch circuit vs squelcher

squelch circuit and squelcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
squelch circuit	Yes	No	No	No
squelcher	Yes	No	No	No

As nouns, squelch circuit and squelcher are synonyms defined as:

squelch circuit and squelcher: an electric circuit that cuts off a receiver when the signal becomes weaker than the noise

Other synonyms of squelch circuit include squelch.

squelch circuit (noun)	squelcher (noun)
an electric circuit that cuts off a receiver when the signal becomes weaker than the noise	an electric circuit that cuts off a receiver when the signal becomes weaker than the noise
	a crushing remark