[kuh-lis-tin] /kəˈlɪs tɪn/

noun, Pharmacology.
a toxic antibiotic polypeptide, C 45 H 85 O 10 N 13 , produced by the bacterium Bacillus colistinus, used in sulfate form against a broad spectrum of microorganisms and in the treatment of severe gastroenteritis.

colistin co·lis·tin (kə-lĭs’tĭn, kō-)
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.


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