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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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His team investigated urolithin A, or UroA, a naturally occurring microbial metabolite produced by gut bacteria after the digestion of foods including pomegranates, walnuts and berries.

From Science Daily Sep. 17, 2026

They also found the bacteria in multiple spots inside the plant and noted that the company had found it repeatedly in prior years.

From The Wall Street Journal Sep. 14, 2026

Anthrax is caused by a bacteria called Bacillus anthracis, which largely survives as spores that hide away in soil for years before entering an animal through inhalation or a cut or wound.

From BBC Sep. 14, 2026

“The first cleanser removes sweat, sunscreen, deodorant, excess oil, and odor-causing bacteria and the second provides another level of cleansing while restoring moisture, supporting the skin barrier or delivering an active ingredient,” Gohara said.

From The Wall Street Journal Sep. 11, 2026

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

From "Ambushed!" by Gail Jarrow

In a study published in Science Advances, the team used BifidoSumIL-2, an engineered strain of Bifidobacterium longum, a probiotic bacterium naturally found in the gut, to carry an immune-stimulating treatment directly into tumors.

From Science Daily Aug. 19, 2026

The bacterium grows in anaerobic environments, meaning places with very little oxygen.

From Science Daily Aug. 19, 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

Allys begins her discussion with some review of the manipulation of the Bt bacterium to create pest-resistant crops, and the introduction of transgenic animals into the food supply decades ago.

From "The Adoration of Jenna Fox" by Mary E. Pearson




Vocabulary lists containing bacteria


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