Dictionary

methicillin

noun meth·i·cil·lin \ˌme-thə-ˈsi-lən\

Definition of METHICILLIN

:  a semisynthetic penicillin C17H19N2O6NaS used especially in the form of its sodium salt against beta-lactamase-producing staphylococci
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Origin of METHICILLIN

meth- + penicillin
First Known Use: 1961
Medical Dictionary

methicillin

noun meth·i·cil·lin \ˌmeth-ə-ˈsil-ən\

Medical Definition of METHICILLIN

:  a semisynthetic penicillin C17H19N2O6NaS that is especially effective against beta-lactamase producing staphylococci

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