of, relating to, or resembling a coliform bacillus.
Origin of coliform
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
1850s, "resembling a sieve," from Latin colum "strainer;" meaning "resembling a bacillus of the coli group" is from 1906, from coli + form.
Online Etymology Dictionary, © 2010 Douglas Harper
Of or relating to the bacilli that commonly inhabit the intestines of humans and other vertebrates, especially the colon bacillus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.