Definition of rifampin
: a semisynthetic antibiotic C43H58N4O12 used especially in the treatment of tuberculosis and to treat asymptomatic carriers of meningococci
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Origin and Etymology of rifampin
International Scientific Vocabulary, alteration of rifamycin, antibiotic derived from Streptomyces mediterranei
First Known Use: 1966
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Britannica.com: Encyclopedia article about rifampin
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