Origin and Etymology of bacitracin
New Latin Bacillus subtilis (species of bacillus producing the toxin) + Margaret Tracy b ab 1936 American child in whose tissues it was found
First Known Use: 1945
Medical Definition of bacitracin
: a polypeptide antibiotic isolated from a bacillus (Bacillus subtilis or B. licheniformis) and usually used topically especially against gram-positive bacteria
Biographical Note for bacitracin
Tracy \ˈtrā-sē\play ,
Margaret, American hospital patient. The antibiotic bacitracin was first identified in 1945 in wound drainage from Margaret Tracy.
Seen and Heard
What made you want to look up bacitracin? Please tell us where you read or heard it (including the quote, if possible).