Thesaurus.com
Dictionary.com
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

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

Though the idea of a mind-altering protozoan transmitted via cats is alarming, it is not necessarily harmful: roughly 30 percent of the human population is infected with the T gondii parasite.

From Salon • Apr. 19, 2022

The disease is caused by Trypanosoma cruzi, a protozoan transmitted by triatomine insects, known as kissing bugs for their vampiric penchant for biting the face and sucking blood.

From Science Magazine • Mar. 9, 2022

Scientists in Czechoslovakia are experimenting with protozoa against webworms and other insect pests, and in the United States a protozoan parasite has been found to reduce the egg- laying potential of the corn borer.

From "Silent Spring" by Rachel Carson