microorganism Any organism that can only be seen with a microscope: protozoans, bacteria, fungi, and viruses are examples of microorganisms.
(microorganism Any organism; can only be seen; with a microscope) (microorganism Any organism that can only be seen with a microscope; are; examples of microorganisms)
microorganism Any organism microorganism Any organism that can only be seen with a microscope
can only be seen are
with a microscope
examples of microorganisms