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).

verb (used without object), de·cou·pled, de·cou·pling.

  1. to separate or diverge from an existing connection; uncouple.


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

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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