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a combining form meaning “bacteria,” used in the formation of compound words:
bactericide; bacteriuria.
Also, bacter-, bacterio-.
Origin of bacteri-
< Greek baktḗrion little staff; see bacterium Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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bacter- in Medicine

bacter- pref.
Variant of bacterio-.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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