any bacteriocin produced by certain strains of Escherichia coli and having a lethal effect on strains other than the producing strain.
Origin of colicin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Any of various antibacterial proteins produced by certain strains of the colon bacillus that are lethal to other closely related strains of bacteria.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.