deactivation

Noun deactivation has 2 senses

• deactivation(n = noun.act) inactivation - breaking up a military unit (by transfers or discharges);
is a kind of discharge, dismissal, dismission, firing, liberation, release, sack, sacking
Derived form verb deactivate₁

• deactivation(n = noun.act) defusing - the act of deactivating or making ineffective (as a bomb);
is a kind of conclusion, ending, termination
Antonym: activation
Derived form verb deactivate₂