colistin
(kə-lĭsˈtĭn, kō-)
noun An antibiotic produced by the bacterium Bacillus polymyxa or B. colistinus that is effective against a wide range of gram-negative bacteria and is used especially in the treatment of infections of the gastrointestinal tract.
Origin:
Origin: From New Latin Colistīnus, species name
Origin: , from coli-
.
Learn more about colistin