[ noun ]
■ (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
→
bacteria
,
bacterium
[ noun ]
■ a minute life form (especially a disease-causing bacterium)
■ the term is not in technical use
→
bug
,
germ
,
microbe
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