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Definition of: microbiology
Our photo definition of microbiology 
(mī′krō·bī·ol′ə·jē) noun
The scientific study of the structure, development, function, and mode of action of micro-organisms, as bacteria, viruses, molds, etc., especially with regard to their significance in health and disease.
—mi·cro·bi·o·log·i·cal (mī′·krō·bī′ə·loj′i·kəl) adjective
—mi′cro·bi·ol′o·gist noun
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