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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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That pattern suggests their gut bacteria were producing fewer beneficial metabolites.

From Science Daily Aug. 31, 2026

Researchers are also conducting microbiological analyses to understand what happens to bacteria inside periodontal pockets during treatment.

From Science Daily Aug. 30, 2026

When bacteria are repeatedly exposed to antibiotics, strains that can survive the drugs may spread, making infections more difficult to treat.

From Science Daily Aug. 30, 2026

Potable water is water that is free of harmful bacteria and chemicals and is considered safe to drink and cook with.

From BBC Aug. 29, 2026

“You could have drowned! Or gotten really sick—there’s all sorts of bacteria in lakes—or...”

From "Made You Up" by Francesca Zappia

The images showed the archaeon and bacterium physically connected by bacterial nanotubes.

From Science Daily Sep. 3, 2026

Coauthor Associate Professor Debnath Ghosal from The University of Melbourne says directly capturing an interaction between an Asgard archaeon and a bacterium is particularly significant.

From Science Daily Sep. 3, 2026

It is more unusual to see an outbreak like this linked to one specific stain of the bacterium affecting many people at one time.

From BBC Aug. 18, 2026

And in April, Rickettsia, a rare but deadly tick-borne bacterium, was found in a person living in Sonoma County.

From Los Angeles Times Aug. 16, 2026

In 1940, an experiment on the simplest of organisms—a microscopic, capsule-shaped, gut-dwelling bacterium named Escherichia coli—provided the first crucial clue to this question.

From "The Gene" by Siddhartha Mukherjee




Vocabulary lists containing bacteria


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