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inactivate

[ in-ak-tuh-veyt ]
/ ɪnˈæk təˌveɪt /
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verb (used with object), in·ac·ti·vat·ed, in·ac·ti·vat·ing.

to make inactive: The bomb was inactivated.
Immunology. to stop the activity of (certain biological substances).

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?

Origin of inactivate

First recorded in 1905–10; inactive + -ate1

OTHER WORDS FROM inactivate

in·ac·ti·va·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for inactivate

British Dictionary definitions for inactivate

inactivate
/ (ɪnˈæktɪˌveɪt) /

verb

(tr) to render inactive

Derived forms of inactivate

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

Medical definitions for inactivate

inactivate
[ ĭn-ăktə-vāt′ ]

v.

To render nonfunctional.
To make quiescent.

Other words from inactivate

in•ac′ti•vation n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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