decommission

verb (used with object)

1. to remove or retire (a ship, airplane, etc.) from active service.
2. to deactivate; shut down: to decommission a nuclear power plant.

verb

1. (tr) to dismantle or remove from service (a nuclear reactor, weapon, ship, etc which is no longer required)

v.

1922, originally with reference to warships, from de- + commission (v.). Related: Decommissioned; decommissioning.