noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An enzyme produced by certain bacteria, responsible for their resistance to beta-lactam antibiotics such as penicillin.
2. 2
   enzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic wordnet

Synonyms

All synonyms

penicillinase

Etymology

From beta-lactam + -ase.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.