double-acting

[ duhb-uhl-ak-ting ]
/ ˈdʌb əlˈæk tɪŋ /

adjective

(of a reciprocating engine, pump, etc.) having pistons accomplishing work in both directions, fluid being admitted alternately to opposite ends of the cylinders.Compare single-acting.
(of a hinge of a door or the like) permitting movement in either direction from the normal, or closed, position.
having twice the usual effectiveness, strength, use, etc.

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Origin of double-acting

First recorded in 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for double-acting

British Dictionary definitions for double-acting

double-acting

adjective

(of a reciprocating engine or pump) having a piston or pistons that are pressurized alternately on opposite sidesCompare single-acting
(of a hinge, door, etc) having complementary actions in opposed directions
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