Coliform
ahd-5
adjective.
Of or relating to various gram-negative rod-shaped bacteria that ferment lactose, especially those such as
E. coli
that commonly inhabit the intestines of humans and other vertebrates.
The Century Dictionary and Cyclopedia
Resembling a sieve; cribriform; ethmoid.
Wiktionary, Creative Commons Attribution/Share-Alike License
adjective.
Of or pertaining to the
bacteria
that inhabit the
intestines
(especially the
colon
) of
mammals
noun.
Such a
bacterium