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Definitions

protozoan

[proh-tuh-zoh-uhn] / ˌproʊ təˈzoʊ ən /


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.

Giardia duodenalis is a microscopic protozoan parasite known for causing outbreaks of severe diarrhea.

From Science Daily • Dec. 21, 2025

By taking a deeper look at how this stealthy protozoan travels through our anatomy, we can develop better tools at disrupting its devastating pathways.

From Salon • Nov. 1, 2022

One common protozoan disease known to occur in birds, which evolved from feathered dinosaurs, as well as in people is called trichomoniasis, caused by a parasitic protozoan.

From Reuters • Oct. 1, 2022

An example of a positive chemotaxis is exhibited by the unicellular protozoan Tetrahymena thermophila.

From Textbooks • Jun. 9, 2022

They are outsiders, in to help with the business: fully formed, perfect spirochetes that have attached themselves at regularly spaced intervals all over the surface of the protozoan.

From "The Lives of a Cell" by Lewis Thomas