Definition of Penicillinase
1. Noun. Enzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic.
Definition of Penicillinase
1. [n -S]
Medical Definition of Penicillinase
1.
Penicillin amino á lactamhydrolase: an enzyme produced by certain bacteria which converts penicillin to an inactive product and thus increases resistance to the antibiotic. A purified preparation from cultures of a strain of Bacillus cereus is used in treatment of reactions to penicillin.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
Lexicographical Neighbors of Penicillinase
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