What does penicillinase mean?

Definitions for penicillinase

This dictionary definitions page includes all the possible meanings, example usage and translations of the word penicillinase.

Princeton's WordNet

  1. penicillinase, beta-lactamasenoun

    enzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic


  1. Penicillinasenoun

    An enzyme which destroys the antibacterial activity of penicillin by hydrolyzing the amide bond in the beta-lactam ring. Many penicillinases are known, and are produced by a wide variety of bacteria. The production of penicillinase is one of the mechanisms by which bacteria may become resistant to penicillins. Penicillinase production in various bacterial species may be induced, i.e., it may occur only when stimulated by the presence of penicillin in the culture medium, or it may be constitutive, i.e., it may occur whenever the cells are producing protein. Molecular weights of the various penicillinases tend to cluster near 50,000.


  1. penicillinasenoun

    A specific type of beta-lactamase showing specificity for penicillins.


  1. penicillinase

    Penicillinase is an enzyme that is produced by certain bacteria and is capable of neutralizing the antibacterial properties of penicillin. It does this by hydrolyzing the beta-lactam ring of the antibiotic, rendering it ineffective. This enzyme is responsible for some types of bacterial resistance to penicillin.

U.S. National Library of Medicine

  1. Penicillinase

    A beta-lactamase preferentially cleaving penicillins. (Dorland, 28th ed) EC 3.5.2.-.

Matched Categories

How to pronounce penicillinase?

How to say penicillinase in sign language?


  1. Chaldean Numerology

    The numerical value of penicillinase in Chaldean Numerology is: 8

  2. Pythagorean Numerology

    The numerical value of penicillinase in Pythagorean Numerology is: 2

Popularity rank by frequency of use


Translations for penicillinase

From our Multilingual Translation Dictionary

Get even more translations for penicillinase »


Find a translation for the penicillinase definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"penicillinase." Definitions.net. STANDS4 LLC, 2024. Web. 20 Apr. 2024. <https://www.definitions.net/definition/penicillinase>.

Discuss these penicillinase definitions with the community:


    Are we missing a good definition for penicillinase? Don't keep it to yourself...

    Image or illustration of


    Credit »

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!

    Browse Definitions.net


    Are you a words master?

    move deeply
    A emerge
    B interrupt
    C disturb
    D demolish

    Nearby & related entries:

    Alternative searches for penicillinase: