Main Entry: bac·i·tra·cin

Pronunciation: \ˌbas-ə-ˈtrās-^ən\

Function: noun

: a polypeptide antibiotic isolated from a bacillus (Bacillus subtilis or B. licheniformis) and usually used topically especially against gram-positive bacteria

Tra·cy \ˈtrā-sē\ , Margaret American hospital patient. The antibiotic bacitracin was first identified in 1945 in wound drainage from Margaret Tracy.