microorganism
/ˌmaɪkroʊˈoɚgəˌnɪzəm/
noun
plural
microorganisms
/ˌmaɪkroʊˈoɚgəˌnɪzəm/
noun
plural
microorganisms
Britannica Dictionary definition of MICROORGANISM
[count]
biology
:
an extremely small living thing that can only be seen with a microscope
