squelch

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To crush by or as if by trampling; squash.
2. v. To put down or silence, as with a crushing retort: squelch a rumor.
3. v. To suppress or inhibit: a protein that squelches gene transcription.
4. v. To produce a splashing, squishing, or sucking sound, as when walking through ooze.
5. n. A squishing sound.
6. n. A crushing reply.
7. n. An electric circuit that cuts off a radio receiver when the signal is too weak for reception of anything but noise.

Century Dictionary and Cyclopedia

1. n. A crushing blow; a heavy fall.
2. To crush down; stamp on as if squeezing out something liquid; put an end to.
3. To disconcert; discomfit; put down.
4. To be crushed.
5. To make a sound like that produced by treading in mud.

Wiktionary

1. v. transitive, US to halt, stop, eliminate, stamp out, or put down, often suddenly or by force
2. v. transitive, radio technology to suppress the unwanted hiss or static between received transmissions by adjusting the gain of your receiver.
3. v. intransitive, UK to make a sucking, splashing noise as when walking on muddy ground
4. v. intransitive, UK to walk or step through a substance such as mud
5. n. A squelching sound.

GNU Webster's 1913

1. v. colloq. To quell; to crush; to silence or put down.
2. n. A heavy fall, as of something flat.
3. n. colloq. A crushing reply.
4. v. To make a sound like that made by the feet of one walking in mud or slush; to make a kind of swashing sound; to squish; also, to move with such a sound.

WordNet 3.0

1. v. to compress with violence, out of natural shape or condition
2. n. a crushing remark
3. v. make a sucking sound
4. v. suppress or crush completely
5. v. walk through mud or mire
6. n. an electric circuit that cuts off a receiver when the signal becomes weaker than the noise