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bacitracin
CIDE DICTIONARY
bacitracin, n. [Bacillus + Margaret Tracy, (a child whose tissues contained Bacillus subtilis ) + -in. RHUD. ].
a polypeptide antibacterial antibiotic of known chemical structure effective against several types of Gram-positive organisms, and usually used topically for superficial local infection.
"It is produced by Bacillus subtilis and Bacillus licheniformis , and as produced commercially is composed of several closely related substances. The predominant component, Bacitracin A , has a formula C60H103N17O16S , and contains D-ornithine, D-phenylalanine and D-glutamine residues as well as the L-isomers of leucine, isoleucine, histidine, asparagine and aspartic acid." [WordNet 1.5]
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