penicillinase

noun
pen·​i·​cil·​lin·​ase | \ ˌpe-nə-ˈsi-lə-ˌnās How to pronounce penicillinase (audio) , -ˌnāz \

Definition of penicillinase

: beta-lactamase specifically : a beta-lactamase that hydrolyzes and inactivates penicillin

First Known Use of penicillinase

1940, in the meaning defined above

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The first known use of penicillinase was in 1940

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Cite this Entry

“Penicillinase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/penicillinase. Accessed 11 May. 2021.

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More Definitions for penicillinase

penicillinase

noun
pen·​i·​cil·​lin·​ase | \ -ˈsil-ə-ˌnās, -ˌnāz How to pronounce penicillinase (audio) \

Medical Definition of penicillinase

: beta-lactamase specifically : a beta-lactamase that hydrolyzes and inactivates penicillin

More from Merriam-Webster on penicillinase

Britannica.com: Encyclopedia article about penicillinase

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