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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.

Proponents of raw dairy have long insisted that it prevents allergies and promotes beneficial bacteria, claims that are not supported by research.

From Los Angeles Times • Apr. 2, 2026

“There’s no pathogenic bacteria correlating us to anybody,” said McAfee.

From Los Angeles Times • Apr. 2, 2026

At the same time, about one in four urine samples tested in NHS laboratories contains bacteria that are resistant to commonly used antibiotics.

From Science Daily • Mar. 31, 2026

If bacteria stop growing, the antibiotic in that tube is effective.

From Science Daily • Mar. 31, 2026

The bacteria kept multiplying, and the pus kept flowing.

From "Ambushed!" by Gail Jarrow