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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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The research work included testing stem cell production, creating and testing IV fluid, and studying how the bacteria that causes pneumonia can lead to long‑term heart damage.

From Los Angeles Times ● Oct. 8, 2026

"You're altering the microbiome of your gut, and perhaps creating antibiotic resistant bacteria in your body that will fight off the drug therapy the next time you really need it," he said.

From Barron's ● Oct. 8, 2026

It’s caused by a bacteria called Yersinia pestis that infects fleas and the small mammals that host fleas, and there are actually three types of plague depending on which part of the body becomes infected.

From Slate ● Oct. 8, 2026

Early communities may contain relatively harmless bacteria, while more complex communities can eventually include species strongly associated with gum disease.

From Science Daily ● Oct. 7, 2026

James Garfield had been attacked first by Guiteau and then by bacteria.

From "Ambushed!" by Gail Jarrow

Plague is a disease caused by the Yersinia pestis bacterium, the same pathogen that killed millions of people in Europe during the Middle Ages.

From Barron's ● Oct. 7, 2026

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 plagues, has been identified from time to time in Siberia, linked to exposure to vermin.

From The Wall Street Journal ● Oct. 5, 2026

The team reconstructed 26 genomes of Yersinia pestis, the bacterium that causes plague, from human remains recovered at 11 archaeological sites in Estonia, Russia, England, the Netherlands, and Switzerland.

From Science Daily ● Sep. 20, 2026

By some standards, it is about as smart as a grasshopper; by others, only as intelligent as a bacterium.

From "Cosmos" by Carl Sagan




Vocabulary lists containing bacteria


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