Protozoon Meaning: Definition, Examples, and Translations
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protozoon
[ˌproʊtəˈzoʊən ]
Definition
biological classification
Protozoa are single-celled eukaryotic organisms that can be free-living or parasitic. They are characterized by their ability to move by means of flagella, cilia, or pseudopodia. Protozoa play essential roles in various ecosystems, particularly in nutrient cycling and serving as a food source for larger organisms. Some protozoans can cause diseases in humans and animals, making them significant in medical research.
Synonyms
microbe, organism, unicellular.
Examples of usage
- Protozoa are important for soil health.
- Some protozoa can cause malaria.
- Researchers study protozoa to understand cell biology.
- Certain protozoans live in aquatic environments.
Translations
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Origin of 'protozoon'
The term 'protozoon' originates from the Greek words 'protos,' meaning 'first,' and 'zoon,' meaning 'animal.' It was first used in the 19th century to classify the simplest forms of life that were single-celled. Protozoa were initially grouped with animals due to their animal-like behavior, such as movement and predation. As science advanced, protozoa were recognized as an important distinct group within the broader category of life forms, leading to a clearer understanding of their biology and role in ecosystems. Over time, studies of protozoa have greatly contributed to fields such as ecology, medicine, and evolutionary biology.