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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.

DNA evidence revealed bacteria associated with oral health problems, including dental disease, but there was no indication of widespread epidemic infections.

From Science Daily • May 19, 2026

The bacteria were identified through “robust routine internal monitoring processes,” according to Kaiser.

From Los Angeles Times • May 18, 2026

Root canal treatment works by removing infected tissue inside the tooth and sealing the area to prevent bacteria and toxins from spreading into surrounding tissues.

From Science Daily • May 16, 2026

Small amounts of salt in food can help preserve it by preventing bacteria from growing.

From BBC • May 15, 2026

Next to Ivy, June shifted, and Ivy wondered if she was thinking that her mom would probably freak out about the whole bacteria thing.

From "Ivy Aberdeen’s Letter to the World" by Ashley Herring Blake




Vocabulary lists containing bacteria


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