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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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University students are particularly at risk because they mix with lots of new people, and the bacteria that causes meningitis is spread in similar ways to the common cold through sneezing and coughing.

From BBC Jul. 19, 2026

Driving the interest are several fast-proliferating chains that offer probiotic-rich yogurts made with cultured milks that contain healthy bacteria.

From The Wall Street Journal Jul. 19, 2026

The issue is further complicated by bacteriophages, which are viruses that infect bacteria.

From Science Daily Jul. 17, 2026

Foodborne disease outbreaks caused by viruses, bacteria like E. coli, or microscopic parasites like Cyclospora are fairly regular occurrences.

From Slate Jul. 17, 2026

His immune system couldn't fight the bacteria spreading through his bloodstream and ravaging his body.

From "Ambushed!" by Gail Jarrow

Infant botulism happens when swallowed spores from the bacterium infect a baby’s large intestine and make a toxin in it.

From Los Angeles Times Jun. 14, 2026

Only two decades ago, it was widely doubted by specialists that the Black Death was caused by the bacterium Yersinia pestis, the agent of the bubonic plague.

From The Wall Street Journal Jun. 12, 2026

A research team led by Drs. Se Hee Lee and Tae Woong Whon at WiKim focused on a kimchi-derived bacterium called Leuconostoc mesenteroides CBA3656.

From Science Daily May 18, 2026

Researchers say the findings indicate the bacterium may help remove nanoplastics from the body by binding to the particles in the intestine and promoting their excretion.

From Science Daily May 18, 2026

His cilia are not cilia at all, but individual spirochetes, and at the base of attachment of each spirochete is an oval organelle, embedded in the myxotricha membrane, which is a bacterium.

From "The Lives of a Cell" by Lewis Thomas




Vocabulary lists containing bacteria


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