polymyxin
poly·myx·in
noun \ˌpä-lē-ˈmik-sən\Definition of POLYMYXIN
: any of several toxic antibiotics obtained from a soil bacterium (Bacillus polymyxa) and active against gram-negative bacteria
Origin of POLYMYXIN
International Scientific Vocabulary, from New Latin polymyxa, from poly- + Greek myxa mucus — more at mucus
First Known Use: 1947
poly·myx·in
noun \ˌpäl-i-ˈmik-sən\ (Medical Dictionary)Medical Definition of POLYMYXIN
: any of several toxic antibiotics obtained from a soil bacterium of the genus Bacillus (B. polymyxa) and active against gram-negative bacteria
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