Wiktionary
protozoal
a. protozoan
WordNet
Usage examples of "protozoal".
Or here it mentions an experiment by Nakajima and Karihara, 1994, which showed how bacterium developed into a chain of bacterial cells in the presence of protozoal grazers.
Bats can also carry other diseases, from a protozoal sleeping sickness called Chagas disease to histoplasmosis, an airborne fungus that comes from inhaling dusty bat guano.