protozoon
/ˌproʊtəˈzoʊən/
noun
- A single-celled organism that can move and feed on other organisms; a protozoan.
- Under the microscope, the protozoon looked like a tiny, moving blob.
- A protozoon called Paramecium swims using tiny hair-like structures.
- Some diseases are caused by a protozoon that enters the human body through insect bites.