Bacitracin

//ˌbæs.ɪˈtɹeɪ.sɪn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A nonprescription polypeptide antibiotic isolated from a bacillus (Bacillus subtilis or Bacillus licheniformis), usually provided in topical ointment form especially against gram-positive bacteria. countable, uncountable
  2. 2
    a polypeptide antibiotic of known chemical structure effective against several types of Gram-positive organisms; usually applied locally wordnet

Synonyms

All synonyms
antibioticpenicillin

Etymology

From translingual Baci(llus subtilis) + Tracy + -in. Named after American child Margaret Tracy (1936–1994), in whose leg infection the compound was first found.

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