(ergative) to make something inactive or no longer effective / to prevent the action of a biochemical agent (such as an enzyme) / to remove a person or piece of hardware from active military service

simple past tense and past participle of deactivate

Third-person singular simple present indicative form of deactivate

present participle of deactivate

The act of deactivating something, such as a bomb or alarm.

plural of deactivation

Any device used to deactivate something. / A chamber filled with iron filings or other material used to remove excess oxygen or other substances from water.

plural of deactivator

(chemistry, physics) The amount of energy needed to slow down or stop a reaction.