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verb, -pled, -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). |
| 4. | to separate or diverge from an existing connection; uncouple. |