# bacitracin

> English word · Noun · IPA /ˌbæs.ɪˈtɹeɪ.sɪn/

## Definitions
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.

## 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.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bacitracin