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nounenzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic
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Definition that contains penicillinase
- oxacillin a form of penicillin resistant to penicillinase and effective against penicillin-resistant staphylococci
- nafcillin a penicillinase-resistant form of penicillin (trade name Nafcil) used (usually in the form of its sodium salt) to treat infections caused by penicillin-resistant strains of staphylococci
- penicillinase-resistant antibiotic a form of penicillin that is not rendered inactive by penicillinase
- nafcil a penicillinase-resistant form of penicillin (trade name Nafcil) used (usually in the form of its sodium salt) to treat infections caused by penicillin-resistant strains of staphylococci