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bacteri-

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  1. a combining form meaning “bacteria,” used in the formation of compound words: bactericide; bacteriuria.
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Also bacter-, bacterio-.

Origin of bacteri-

< Greek baktḗrion little staff; see bacterium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for bacterio-

bacterio-

bacteri- or sometimes before a vowel bacter-

combining form
  1. indicating bacteria or an action or condition relating to or characteristic of bacteriabacteriology; bactericide; bacteroid
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Word Origin

New Latin, from bacteria
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bacterio- in Medicine

bacterio-

pref.
  1. Bacteria; bacterial:bacteriology.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.