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deactivate

[ dee-ak-tuh-veyt ]
/ di藞忙k t蓹藢ve瑟t /
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verb (used with object), de路ac路ti路vat路ed, de路ac路ti路vat路ing.
to cause to be inactive; remove the effectiveness of.
to demobilize or disband (a military unit).
to render (a bomb, shell, or the like) inoperative, especially by disconnecting, removing, or otherwise interfering with the action of the fuze.
Chemistry. to render (a chemical, enzyme, catalyst, etc.) inactive.
verb (used without object), de路ac路ti路vat路ed, de路ac路ti路vat路ing.
Physical Chemistry. to lose radioactivity.
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Which of the following words describes 鈥渟ky blue鈥?
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Origin of deactivate

First recorded in 1900鈥05; de- + activate

OTHER WORDS FROM deactivate

de路ac路ti路va路tion, nounde路ac路ti路va路tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2021

How to use deactivate in a sentence

British Dictionary definitions for deactivate

deactivate
/ (di藧藞忙kt瑟藢ve瑟t) /

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

Derived forms of deactivate

deactivation, noundeactivator, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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