Squelch

1. to strike or press with crushing force; crush down; squash. 2. to put down, suppress, or silence, as with a crushing retort or argument.
—v.i. 1. to make a splashing sound. 2. to tread heavily in water, mud, wet shoes, etc., with such a sound.
—n. 1. a squelched or crushed mass of anything. 2. a splashing sound. 3. an act of squelching or suppressing, as by a crushing retort or argument. 4. Also called squelch' cir"cuit, noise suppressor. Electronics.a circuit in a receiver, as a radio receiver, that automatically reduces or eliminates noise when the receiver is tuned to a frequency at which virtually no carrier wave occurs.