[ dash-pot ]
/ ˈdæʃˌpɒt /


a device for cushioning, damping, or reversing the motion of a piece of machinery, consisting of a cylinder in which a piston operates to create a pressure or vacuum on an enclosed gas or to force a fluid in or out of the chamber through narrow openings.

Origin of dashpot

First recorded in 1860–65; dash1 + pot1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dashpot

  • The seating of the main admission valve is cushioned by the dashpot, the piston of which is shown in section at G (Fig. 51).

    Steam Turbines|Hubert E. Collins

British Dictionary definitions for dashpot

/ (ˈdæʃˌpɒt) /


a device for damping vibrations; the vibrating part is attached to a piston moving in a liquid-filled cylinder

Word Origin for dashpot

C20: from dash 1 + pot 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012