Definition of Protozoa

any of a large group of single cellular animals that lives in water or as a parasite

Examples of Protozoa in a sentence

Using cilia to move around, the unicellular protozoa made its way through the marsh.  

The tiny protozoa invaded the host planted and acted as a one-celled parasite.  

In general, protozoa are single-celled organisms whose main function is to consume bacteria.  

Unicellular protozoa are usually found in ponds and moist places such as garden soil.  

Unlike multicellular animals, single-celled protozoa are extremely small and not very complex.  

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