The American Heritage® Dictionary of the English Language, 4th Edition
n. An antibiotic, C66H75Cl2N9O24, produced by the actinomycete Amycolaptosis orientalis (formerly Streptomyces orientalis), found in Indonesian and Indian soil, and effective against staphylococci and spirochetes.
n. A glycopeptide antibiotic, produced by the actinomycete Amycolaptosis orientalis, used against Gram-positive bacteria, especially staphylococci and enterococci.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an antibiotic (trade name Vancocin) effective against some bacterial infections
Word Usage
"It was called vancomycin, and it was famous in hospitals as a drug of last resort."