from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various antibacterial proteins produced by certain strains of the colon bacillus that are lethal to other closely related strains of bacteria.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a class of protein, secreted by certain strains of bacteria, that kills but does not lyse other strains.
col(on)2 + -ic + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)