• synonyms


[dee-kuhp-uh l]
verb (used with object), de·cou·pled, de·cou·pling.
  1. to cause to become separated, disconnected, or divergent; uncouple.
  2. to absorb the shock of (a nuclear explosion): a surrounding mass of earth and rock can decouple a nuclear blast.
  3. Electronics. to loosen or eliminate the coupling of (a signal between two circuits).
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verb (used without object), de·cou·pled, de·cou·pling.
  1. to separate or diverge from an existing connection; uncouple.
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Origin of decouple

First recorded in 1595–1605; de- + couple
Related formsde·cou·pler, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for decouple


  1. (tr) to separate (joined or coupled subsystems) thereby enabling them to exist and operate separately
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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

Word Origin and History for decouple


c.1600, from French découpler "to uncouple," from de- (see de-) + coupler (Old French copler; see couple (v.)). Related: Decoupled; decoupling.

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Online Etymology Dictionary, © 2010 Douglas Harper