infected

adjective

in·​fect·​ed in-ˈfek-təd How to pronounce infected (audio)
Synonyms of infectednext
: having an infection : contaminated with an infective agent (such as a bacterium or virus)
an infected wound
Through a number of different means, these viruses persist at very low, hard-to-detect levels in infected cells.The Journal of the American Medical Association
She explains that leptospirosis bacteria are shed in the urine of infected animals.Tania Banak
The fungus produces as many as 1 million conidia per square centimeter of infected leaf surface.G. B. Lucas

Examples of infected in a Sentence

Recent Examples on the Web
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The virus can remain in the air for two hours after an infected person was present, according to county health officials. Jeff Capellini, CBS News, 28 Dec. 2025 Give the infected plant a lot of full sun and treat it with fungicide. Kim Toscano, Southern Living, 26 Dec. 2025 Veterinary experts recommend culling infected animals or isolating them. Nicole Blanchard, Idaho Statesman, 23 Dec. 2025 One infected tree can produce enough beetles to spread to up to 10 new trees, McCombs said. Elise Schmelzer, Denver Post, 22 Dec. 2025 See All Example Sentences for infected

Word History

Etymology

from past participle of infect

First Known Use

1534, in the meaning defined above

Time Traveler
The first known use of infected was in 1534

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Cite this Entry

“Infected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infected. Accessed 31 Dec. 2025.

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