英语释义
1. a polymyxin produced by a bacterium (Bacillus polymyxa var. colistinus) from Japanese soil
2. a polymyxin produced by a bacterium of the genus Bacillus (B. polymyxa var. colistinus) and used against some gram-negative pathogens especially of the genera Pseudomonas, Escherichia, Klebsiella, and Shigella