WordReference Random House Unabridged Dictionary of American English © 2026
de•cou•ple
(dē kup′əl),USA pronunciation v., -pled, -pling.
v.t.
v.i.
de•cou′pler, n.
v.t.
- to cause to become separated, disconnected, or divergent;
uncouple. - Physicsto absorb the shock of (a nuclear explosion):a surrounding mass of earth and rock can decouple a nuclear blast.
- Electronicsto loosen or eliminate the coupling of (a signal between two circuits).
v.i.
- to separate or diverge from an existing connection;
uncouple.
- de- + couple 1595–1605