Definition of colicin
: any of various antibacterial substances produced by strains of intestinal bacteria (as of E. coli)
Variants of colicin
Origin of colicin
French colicine, from col- + -cine (as in streptomycine streptomycin)
First Known Use: 1946
Medical Definition of colicin
: any of various antibacterial proteins that are produced by some strains of intestinal bacteria (as E. coli) having a specific plasmid and that often act to inhibit macromolecular synthesis in related strains
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Medical Dictionary: Definition of "colicin"
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