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View synonyms for deactivate

deactivate

[ dee-ak-tuh-veyt ]

verb (used with object)

, de·ac·ti·vat·ed, de·ac·ti·vat·ing.
  1. to cause to be inactive; remove the effectiveness of.
  2. to demobilize or disband (a military unit).
  3. to render (a bomb, shell, or the like) inoperative, especially by disconnecting, removing, or otherwise interfering with the action of the fuze.
  4. Chemistry. to render (a chemical, enzyme, catalyst, etc.) inactive.


verb (used without object)

, de·ac·ti·vat·ed, de·ac·ti·vat·ing.
  1. Physical Chemistry. to lose radioactivity.

deactivate

/ diːˈæktɪˌveɪt /

verb

  1. tr to make (a bomb, etc) harmless or inoperative
  2. intr to become less radioactive
  3. tr to end the active status of (a military unit)
  4. chem to return or cause to return from an activated state to a normal or ground state


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Derived Forms

  • deˈactiˌvator, noun
  • deˌactiˈvation, noun

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Other Words From

  • de·acti·vation noun
  • de·acti·vator noun

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Word History and Origins

Origin of deactivate1

First recorded in 1900–05; de- + activate

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Example Sentences

This ship is crowded with a complete set of automatic defenses that I cant deactivate.

It will not be possible to deactivate it before 12.45 hours.

Conn used the manual control to set it down and deactivate it, then got out and went to examine it.

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de-acquisitiondead