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

meth- + penicillin

First Known Use: 1961

Medical Dictionary

noun meth·i·cil·lin \ˌmeth-ə-ˈsil-ən\

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

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