Wiktionary
reactivation
n. The activation of something previously inactive or inactivated.
Usage examples of "reactivation".
We must evaluate the factors already mentioned and many others, such as the reactivation of the spacecraft which was thought to have been destroyed so long ago.
Unless it was tampered with or affected by unforeseen natural forces, it should remain, self-repairing and self-maintaining, awaiting reactivation should it be required.
Despite all the unnatural acts that had been performed on the Constitution, it was only proper that mankind's highest elected official speak for humanity on such an occasion as the reactivation of the Grand Alliance that had crushed the Rigelians.