Dashpot n. : A pneumatic or hydraulic cushion for a falling weight, as in the valve gear of a steam engine, to prevent shock.

Example:
What does the Dashpot on a car do?

Taxonomy
dashpot, dashpots, damper, motion, free encyclopedia, behavior, resists, acts, viscous damper, proportional, commonly used, models, rotary, fluid, viscous friction, Viscoelasticity, linear displacement, angular velocity.

Defination from the web:
dashpot is an eddy current damper, which uses a large magnet inside of a tube constructed out of a non-magnetic but ... A spring applies force to close the door and the dashpot, implemented by requiring fluid to flow through a narrow channel between reservoirs ...