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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.

The manufacturing process can also introduce impurities — like bacteria or heavy metals — into peptide drugs.

From Salon • Apr. 4, 2026

“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

The Earth’s bacteria had infected the extraterrestrial invaders, who lacked immunity to them.

From "Spooked!" by Gail Jarrow