from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A synthetic antibiotic, C17H19N2O6NaS, related to penicillin and most commonly used in treatment of infections caused by penicillinase-producing staphylococci.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An antibiotic drug, chemically related to penicillin, often used against strains of bacteria which have become resistant to penicillin.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. antibiotic drug of the penicillin family used in the treatment of certain staphylococcal infections
meth- + (pen)icillin.(American Heritage® Dictionary of the English Language, Fourth Edition)
methi- + -cilin (Wiktionary)