squelched

1. To halt, stop, eliminate, stamp out, or put down, often suddenly or by force

   Even the king’s announcement could not squelch the rumors.

2. (radio technology) to suppress the unwanted hiss or static between received transmissions by adjusting a threshold level for signal strength, below which the signal is suppressed by applying a gain of zero, and above which a positive (and linear from zero) gain is applied.
3. To make a sucking, splashing noise as when walking on muddy ground

   The mud squelched underfoot; it had been raining all night.

4. To walk or step through a substance such as mud

   The mud was thick and sticky underfoot, but we squelched through it nonetheless.

adjective

Having been squelched.