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Definitions

bacteria

[bak-teer-ee-uh] / bækˈtɪər i ə /
NOUN
microorganisms
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Recent testing by campaign group Stop Ure Pollution and the Yorkshire Dales Rivers Trust further upstream has raised concerns about bacteria and other pollution in the river, the Local Democracy Service reports.

From BBC ● Oct. 7, 2026

Rather than broadly attacking oral bacteria with antimicrobial treatments, the long term goal is to find ways to influence the balance of the microbial community itself.

From Science Daily ● Oct. 7, 2026

That raises an intriguing possibility: instead of trying to kill bacteria, could scientists influence how they behave and encourage healthier microbial communities?

From Science Daily ● Oct. 7, 2026

In other words, they are saying they don’t know what pathogen caused the infection of her lungs, let alone whether it was Yersinia pestis, the bacteria that cause the plague.

From The Wall Street Journal ● Oct. 6, 2026

He suspected that bacteria entered wounds through a surgeon's dirty hands and instruments.

From "Ambushed!" by Gail Jarrow

The bacterium that causes the plague, Yersinia pestis, found among rodents such as marmots in the area.

From BBC ● Oct. 7, 2026

The bacterium Yersinia pestis, which can cause pneumonic and bubonic plague, has been identified from time to time in Siberia, linked to exposure to vermin.

From The Wall Street Journal ● Oct. 6, 2026

By analyzing DNA from the plague bacterium preserved in archaeological human remains, scientists were able to reconstruct how the disease spread, evolved, and repeatedly reappeared long after the Black Death.

From Science Daily ● Sep. 20, 2026

Instead, the disease appears to have resurfaced in different parts of Europe over hundreds of years, potentially creating several new reservoirs where the bacterium could persist.

From Science Daily ● Sep. 20, 2026

Reed favored the idea that a bacterium, first identified by Italian scientists and usually found in swamps, was the culprit.

From "An American Plague: The True and Terrifying Story of the Yellow Fever Epidemic of 1793" by Jim Murphy




Vocabulary lists containing bacteria


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