polymyxin(redirected from Polymyxins)
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Any of various mainly toxic antibiotics derived from strains of the soil bacterium Bacillus polymyxa and used to treat various infections with gram-negative bacteria.
(Pharmacology) any of several polypeptide antibiotics active against Gram-negative bacteria, obtained from the soil bacterium Bacillus polymyxa
[C20: from New Latin Bacillus polymyxa; see poly-, myxo-, -in]
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|Noun||1.||polymyxin - any of several toxic antibiotics obtained from a particular soil bacterium|