verb (used with object)
- to remove or retire (a ship, airplane, etc.) from active service.
- to deactivate; shut down: to decommission a nuclear power plant.
- (tr) to dismantle or remove from service (a nuclear reactor, weapon, ship, etc which is no longer required)
1922, originally with reference to warships, from de- + commission (v.). Related: Decommissioned; decommissioning.