'bacterium' in a sentence
Learn how to use 'bacterium' with 2 example sentences.
- bacterium noun
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: (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
This bacterium is resistant to penicillin.
Do not confuse a virus with a bacterium.