IPA: /ˌpɛnɪsɪˈleɪnɛɪz/
KK: /pɛnɪsɪlɪneɪs/
A type of enzyme made by some bacteria that breaks down penicillin, making it ineffective. This enzyme is important in medicine, especially for treating penicillin allergies.
The doctor explained that the infection was resistant to treatment because the bacteria produced penicillinase.
Penicillinase → It is formed from "penicillin" (from the Latin *penicillium*, meaning a type of mold) and "-ase" (a suffix used in biochemistry to denote enzymes). The word refers to an enzyme that breaks down penicillin.
Think of 'penicillin' as the mold that produces the antibiotic, and '-ase' indicates an enzyme that acts on it. This helps you remember that penicillinase is an enzyme that breaks down penicillin.
No commonly confused words.