Definition of deactivate

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< deaconry

dead >

de·ac·ti·vate

-v

) KEY

TRANSITIVE VERB:
de·ac·ti·vat·ed , de·ac·ti·vat·ing , de·ac·ti·vates

To render inactive or ineffective.
To inhibit, block, or disrupt the action of (an enzyme or other biological agent).
To remove from active military status.

OTHER FORMS:
de·acti·vation (Noun), de·acti·vator (Noun)

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The American Heritage® Dictionary of the English Language, Fourth Edition.
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