disinfection

noun

dis·​in·​fec·​tion ˌdis-in-ˈfek-shən How to pronounce disinfection (audio)
plural disinfections
: the act of disinfecting something
especially : the process of using a disinfectant to destroy, inactivate, or significantly reduce the concentration of pathogenic agents (such as bacteria, viruses, and fungi)
Both viruses are susceptible to disinfection by a weak solution of chlorine bleach. Margaret Reister
… a virulent strain of antibiotic-resistant bacteria spreads beyond hospital walls, some communities are taking extreme measures such as closing schools for disinfection. Laura Landro

Examples of disinfection 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.
Rotterdam, Netherlands — The cruise ship hit by a deadly hantavirus outbreak has docked at the Dutch port of Rotterdam for disinfection, wrapping up a troubled journey that put international health authorities on alert. CBS News, 18 May 2026 The cruise ship hit by a deadly hantavirus outbreak has docked at the Dutch port of Rotterdam for disinfection, wrapping up a troubled journey that put international health authorities on alert. ABC News, 17 May 2026 And clinical trials for far-UVC continuous disinfection, a different wavelength that can operate safely in occupied rooms, could change the economics entirely by eliminating the room-turnover delay that has held back current UV-C adoption. Dara-Abasi Ita, Forbes.com, 15 May 2026 The body of a person who died on board will also remain on the ship, which will undergo a disinfection process in the Netherlands, García said. Phil Helsel, NBC news, 10 May 2026 See All Example Sentences for disinfection

Word History

First Known Use

1722, in the meaning defined above

Time Traveler
The first known use of disinfection was in 1722

Browse Nearby Words

Cite this Entry

“Disinfection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disinfection. Accessed 4 Jun. 2026.

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