inactivate

verb

in·​ac·​ti·​vate (ˌ)i-ˈnak-tə-ˌvāt How to pronounce inactivate (audio)
inactivated; inactivating; inactivates

transitive verb

: to make inactive
chemicals to inactivate viruses
inactivation noun

Examples of inactivate in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Regular honey is processed by filtration and heating, which removes or inactivates many of the beneficial compounds in honey, but clarifies it and prolongs its shelf life. Angela Ryan Lee, Verywell Health, 6 Nov. 2025 Another possibility Diel suggested is heating milk at sub-pasteurization temperatures before using it, which could retain the qualities desired by the raw milk cheese industry and effectively inactivate the virus. Pranjal Malewar, New Atlas, 3 Nov. 2025 These include testing milk before cheesemaking or heating it to sub-pasteurization temperatures, which can inactivate the virus while maintaining the qualities valued by artisanal producers. Lucy Notarantonio, MSNBC Newsweek, 24 Oct. 2025 Cooking helps inactivate these compounds, Messer explains, but those with thyroid concerns may want to moderate their intake or consult a healthcare professional. Daryl Austin, USA Today, 7 Sep. 2025 See All Example Sentences for inactivate

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of inactivate was in 1906

Browse Nearby Words

Cite this Entry

“Inactivate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inactivate. Accessed 9 Nov. 2025.

Kids Definition

inactivate

verb
in·​ac·​ti·​vate (ˈ)in-ˈak-tə-ˌvāt How to pronounce inactivate (audio)
: to make inactive
inactivation noun

Medical Definition

inactivate

transitive verb
in·​ac·​ti·​vate (ˈ)in-ˈak-tə-ˌvāt How to pronounce inactivate (audio)
inactivated; inactivating
: to make inactive: as
a
: to destroy certain biological activities of
inactivate the complement of normal serum by heat
b
: to cause (as an infectious agent) to lose disease-producing capacity
inactivate bacteria
inactivation noun
inactivator noun
Last Updated: - Updated example sentences
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