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penicillin (n)/ˌpen.əˈsɪl.ɪn//ˌpen.əˈsɪl.ɪn/An antibiotic or group of antibiotics produced naturally by certain blue molds, and now usually prepared synthetically.pê-ni-xi-lin  Penicillin has saved many lives. Penicillin revolutionized medicine by introducing the first widely used antibiotic. Sir Alexander Fleming's discovery of penicillin had a profound impact on healthcare. Penicillin is still a vital tool in the treatment of bacterial infections. Từ vựng khác:moisturiser , immediately , highly , previously , quietness |