#shock absorber

• Shock absorber — An apparatus, mechanical, hydraulic, pneumatic, or electrical device used to absorb kinetic energy and attenuate the intensity of shocks, vibrations, noises, or oscillations of a system in motion; an essential component of vehicle suspensions. In an adjectival sense, it describes a substance, porous material, or structure that has the property of dampening or absorbing physical impacts.
• Vibration dampener — A device, component, or material used for absorbing, dampening, or eliminating vibrations, tremors, and mechanical shock waves produced by machinery, engines, pipes, or sports equipment. In mechanics, it protects structures against material fatigue; in sports (e.g., tennis), it is a small silicone piece placed between the racket strings to reduce shocks transmitted to the player's arm.