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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.

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

From Los Angeles Times • Apr. 2, 2026

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

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

From Science Daily • Mar. 31, 2026

Scientists at TU Wien, working with data storage company Cerabyte, produced a QR code measuring just 1.98 square micrometers, which is smaller than most bacteria.

From Science Daily • Mar. 29, 2026

These antiseptic measures worked because the chemicals killed bacteria.

From "Ambushed!" by Gail Jarrow