One entry found for bacterium.

Main Entry: bac·te·ri·um
Pronunciation: bak-tir--m
Function: noun
Inflected Form(s): plural bacte·ria /--/
: any of a group of single-celled microorganisms that live in soil, water, the bodies of plants and animals, or matter obtained from living things and are important because of their chemical effects and disease-causing abilities

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