Definition of methicillin
: a semisynthetic penicillin C17H19N2O6NaS used especially in the form of its sodium salt against beta-lactamase-producing staphylococci
Recent Examples of methicillin from the Web
Background: The M in MRSA stands for methicillin, the first of the semi-synthetic penicillins, created by Beecham Laboratories in 1960 in response to a worldwide 1950s outbreak of penicillin-resistant staph.
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Origin and Etymology of methicillin
meth- + penicillin
First Known Use: 1961
Medical Definition of methicillin
: a semisynthetic penicillin C17H19N2O6NaS that is especially effective against beta-lactamase producing staphylococci
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