meth·i·cil·lin (měth'ĭ-sĭl'ĭn) n. A synthetic antibiotic, C17H19N2O6NaS, related to penicillin and most commonly used in treatment of infections caused by penicillinase-producing staphylococci.
Main Entry: meth·i·cil·lin Pronunciation: "meth-&-'sil-&n Function: noun : a semisynthetic penicillinC17H19N2O6NaS that is especially effective against beta-lactamase producing staphylococci
methicillin meth·i·cil·lin (měth'ĭ-sĭl'ĭn) n. A synthetic antibiotic related to penicillin and most commonly used in treatment of infections caused by staphylococci that produce penicillinase.