Polymyxin

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of several toxic antibiotics, derived from the soil bacterium Bacillus polymyxa, used to treat infections by gram-negative bacteria
  2. 2
    any of several toxic antibiotics obtained from a particular soil bacterium wordnet

Etymology

From translingual polymyxa + -in, from Bacillus polymyxa, from which the antibiotic was isolated.

Related phrases

bacillus polymyxagram negative

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.