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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.

Keep chilled foods out of the fridge for as little time as possible to stop bacteria growing and making you ill.

From BBC • Jul. 2, 2026

I would love to see an at-home generator powered by bacteria that eat trash!

From The Wall Street Journal • Jun. 29, 2026

The researchers were surprised to discover that the bacteria were not helping plants by reducing salt levels inside their tissues.

From Science Daily • Jun. 29, 2026

Just maybe don’t tell your dinner guests that you are growing bacteria in the next room over.

From The Wall Street Journal • Jun. 29, 2026

Oxygen and nutrients can cross the blood-brain barrier, but many dangerous substances like bacteria cannot.

From "Phineas Gage" by John Fleischman




Vocabulary lists containing bacteria


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