bacterium
bac-te-ri-um
noun
A microscopic, single-celled organism, some types cause disease, others are beneficial.
"A single bacterium is too small to see without a microscope."
Thesaurus
Synonyms: bacteria
bac-te-ri-um
A microscopic, single-celled organism, some types cause disease, others are beneficial.
"A single bacterium is too small to see without a microscope."
Synonyms: bacteria