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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 jab is not effective at preventing the transmission of bacteria between people.

From BBC • Jun. 12, 2026

Meningitis B bacteria spread through close contact - for example through kissing, sharing vapes and drinks or living in close quarters with a person with the bug.

From BBC • Jun. 11, 2026

On the other, they might inadvertently bring in a disease or bacteria.

From Los Angeles Times • Jun. 9, 2026

An analysis of his microbiome revealed a particular kind of a gut bacteria that is almost non-existent among modern humans.

From Barron's • Jun. 3, 2026

Avery fiddled with the experiment as only a microbiologist could, growing the bacteria in various cultures, adding beef-heart broth, removing contaminant sugars, and growing the colonies on plates.

From "The Gene" by Siddhartha Mukherjee




Vocabulary lists containing bacteria


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