penicillin
/ˌpɛnɪˈsɪlɪn/IPA: /P EH0 N AH0 S IH1 L AH0 N/
noun
- 1
Any of a group of narrow-spectrum antibiotics obtained from Penicillium molds or synthesized; they have a beta-lactam structure; most are active against gram-positive bacteria and used in the treatment of various infections and diseases.
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