deactivate








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.

verb

  1. (tr) to make (a bomb, etc) harmless or inoperative
  2. (intr) to become less radioactive
  3. (tr) US 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
v.

1904, from de- + activate. Related: Deactivated; deactivating; deactivation.

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