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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.

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

The gut is home to trillions of microorganisms, including bacteria, viruses and fungi.

From BBC • Jun. 11, 2026

When rain falls on California shopping centers and warehouses, the water runs off parking lots carrying metal dust and chemicals from vehicle tires and brake pads, oil and grease from engines, and bacteria from trash.

From Los Angeles Times • Jun. 5, 2026

Though gone from the stomachs of people in the industrialised world, the bacteria has been detected among tribes in Africa and South America, Sarhan said.

From Barron's • Jun. 3, 2026

Science is my favorite subject—we’re studying bacteria right now— and I also don’t mind my spelling homework, either.

From "The Wrong Way Home" by Kate O’Shaughnessy




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