bacterium

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.

One lowly bacterium possesses a flagellum—a tiny tail or rotor.

From The Wall Street Journal • Apr. 16, 2026

Flea-borne typhus is caused by the bacterium Rickettsia typhi.

From Los Angeles Times • Apr. 3, 2026

So a lot of the focus is on changes to the bacterium and whether people have less immunity.

From BBC • Mar. 27, 2026

The researchers found that this bacterium can enter the bloodstream and settle in breast tissue, where it triggers inflammation and early cellular changes linked to cancer.

From Science Daily • Mar. 19, 2026

It took nature hundreds of millions of years to evolve a bacterium, and billions to make a grasshopper.

From "Cosmos" by Carl Sagan