Electric circuit and Squelch circuit

Electric circuit noun - An electrical device that provides a path for electrical current to flow.

Squelch circuit and electric circuit are semantically related. In some cases you can replace phrase "Squelch circuit" with "Electric circuit", this phrases are similar.

Squelch circuit noun - An electric circuit that cuts off a receiver when the signal becomes weaker than the noise.

Electric circuit and squelch circuit are semantically related. You can use "Electric circuit" instead a noun phrase "Squelch circuit".