noun
- single-celled microscopic organisms that are typically able to move and feed on organic matter
Usage: biology; plural form
Examples
- The pond water contained various protozoa visible under the microscope.
- Amoebas and paramecia are common examples of protozoa.
- Scientists study protozoa to understand basic cellular functions.
- Some protozoa can cause diseases in humans and animals.
- The biology class observed protozoa swimming in the water sample.
- Protozoa play important roles in aquatic food chains.