snubber
nounUK /ˈsnʌbə/
US /ˈsnʌbər/
A snubber is a thing that stops something from moving too much or too fast.
The engineer added a snubber to the machine so it would not shake so hard.
OTHER MEANINGS
2. A person who treats someone coldly or ignores them on purpose.
He was a snubber at the party, turning away from everyone who said hello.
3. An electrical device that protects a circuit from sudden voltage spikes.
The snubber across the switch kept the voltage from jumping too high.
4. A device on a vehicle or machine that limits sudden movement or bounce.
The train's snubber softened the jolt when the cars bumped together.