[kol-uh-fawrm, koh-luh-]
of, pertaining to, or resembling a coliform bacillus.

1850–55; < Neo-Latin coli, genitive of Latin colum, colon colon2 (the specific epithet of various species of bacteria inhabiting the colon, as Escherichia coli; construed as col- + -i-) + -form Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin & History

1850s, "resembling a sieve," from L. colum "strainer;" meaning "resembling a bacillus of the coli group" is from 1906, from coli + form.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

coliform co·li·form (kō'lə-fôrm', kŏl'ə-)
Of or relating to the bacilli that commonly inhabit the intestines of humans and other vertebrates, especially the colon bacillus.

co'li·form' n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Prompt resolution of coliform bacterial contamination incidents is strongly advised.
Streptomycin resistance of coliform bacteria from turkeys fed streptomycin.
The coliform bacteria are found naturally in the intestinal tract of humans and animals.
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