bacitracin
noun/ˌbæs.ɪˈtɹeɪ.sɪn/
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.
1
Medicine, Pharmacology, Sciences A nonprescription polypeptide antibiotic isolated from a bacillus (Bacillus subtilis or Bacillus licheniformis), usually provided in topical ointment form especially against gram-positive bacteria.