Single Biggest Cancer Dictionary in the World
What is
microorganism
?Pronunciation: /ˌmaɪkroʊˈɔrgəˌnɪzəm/
microorganism
Definition
An organism that can be seen only through a microscope. Microorganisms include bacteria, protozoa, algae, and fungi. Although viruses are not considered living organisms, they are sometimes classified as microorganisms.