a toxic antibiotic polypeptide, C45H85O10N13, produced by the bacterium Bacillus colistinus, used in sulfate form against a broad spectrum of microorganisms and in the treatment of severe gastroenteritis.
Origin of colistin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
An antibiotic produced by the bacterium Bacillus polymyxa or B. colistinus that is effective against a range of gram-negative bacteria and is used especially in the treatment of infections of the gastrointestinal tract.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.