bacitracin

noun Pharmacology.

1. an antibiotic polypeptide derived by the hydrolytic action of Bacillus subtilis on protein, primarily used topically in the treatment of superficial infections caused by susceptible Gram-positive organisms.

noun

1. an antibiotic used mainly in treating bacterial skin infections: obtained from the bacterium Bacillus subtilis

n.

1. A polypeptide antibiotic obtained from a strain of the bacterium Bacillus subtilis and used as a topical treatment for certain bacterial infections, especially those caused by cocci.