Definitions for PENICILLIN
ˌpɛn əˈsɪl ɪnpeni·cillin

Princeton's WordNetRate this definition:0.0 / 0 votes

1. penicillinnoun

   any of various antibiotics obtained from Penicillium molds (or produced synthetically) and used in the treatment of various infections and diseases

GCIDERate this definition:0.0 / 0 votes

1. penicillinnoun

   Any of a variety of substances having a structure containing a beta-lactam ring fused to a thiirane ring, to which a carboxyl group is attached, but most commonly interpreted as benzyl penicillin. They are notable as powerful antibacterial agents of relatively low toxicity which have found extensive use in medicine for treating bacterial infections. They are categorized as one of the classes of beta-lactam antibiotic. They are produced naturally by some fungi and bacteria, and industrial production processes almost invariably start from some form of the penicillin nucleus produced by fermentation of microorganisms. The fermentation products are then chemically modified to produce derivatives of enhanced potency, safety, or antibacterial spectrum. The first penicillin to see extensive use clinically (during World War II) was penicillin G, also called benzypenicillin, and commonly simply

WiktionaryRate this definition:0.0 / 0 votes

1. penicillinnoun

   Any of a group of broad-spectrum antibiotics obtained from Penicillium molds or synthesized; they have a beta-lactam structure; most are active against gram-positive bacteria and used in the treatment of various infections and diseases.

2. Etymology: Coined by Alexander Fleming after Penicillium notatum (now Penicillium chrysogenum), a fungus from which penicillin is obtained.

WikipediaRate this definition:0.0 / 0 votes

1. Penicillin

   Penicillins (P, PCN or PEN) are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens. Most penicillins in clinical use are synthesised by P. chrysogenum using deep tank fermentation and then purified. A number of natural penicillins have been discovered, but only two purified compounds are in clinical use: penicillin G (intramuscular or intravenous use) and penicillin V (given by mouth). Penicillins were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci. They are still widely used today for different bacterial infections, though many types of bacteria have developed resistance following extensive use. 10% of the population claims penicillin allergies but because the frequency of positive skin test results decreases by 10% with each year of avoidance, 90% of these patients can tolerate penicillin. Additionally, those with penicillin allergies can usually tolerate cephalosporins (another group of β-lactam) because the Immunoglobulin E (IgE) cross-reactivity is only 3%.Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming as a crude extract of P. rubens. Fleming's student Cecil George Paine was the first to successfully use penicillin to treat eye infection (Ophthalmia neonatorum) in 1930. The purified compound (penicillin F) was isolated in 1940 by a research team led by Howard Florey and Ernst Boris Chain at the University of Oxford. Fleming first used the purified penicillin to treat streptococcal meningitis in 1942. The 1945 Nobel Prize in Physiology or Medicine was shared by Chain, Fleming, and Florey. Several semisynthetic penicillins are effective against a broader spectrum of bacteria: these include the antistaphylococcal penicillins, aminopenicillins, and antipseudomonal penicillins.

ChatGPTRate this definition:0.0 / 0 votes

1. penicillin

   Penicillin is a group of antibiotics derived from Penicillium fungi, used in the treatment of bacterial infections caused by microorganisms. It works by killing or stopping the growth of certain kinds of bacteria. It was the first antibiotic to be discovered, originally by Alexander Fleming in 1928, and has now various types, including penicillin G, penicillin V, procaine penicillin, and benzathine penicillin. Penicillin is used to treat diseases such as pneumonia, strep throat, meningitis and syphilis.

WikidataRate this definition:0.0 / 0 votes

1. Penicillin

   Penicillin is a group of antibiotics derived from Penicillium fungi. They include penicillin G, procaine penicillin, benzathine penicillin, and penicillin V. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases, such as syphilis, and infections caused by staphylococci and streptococci. Penicillins are still widely used today, though many types of bacteria are now resistant. All penicillins are β-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms.

Matched Categories

1. • Antibiotic

Usage in printed sourcesFrom: 

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How to pronounce PENICILLIN?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say PENICILLIN in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of PENICILLIN in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of PENICILLIN in Pythagorean Numerology is: 4

Examples of PENICILLIN in a Sentence

1. Amesh Adalja:

   Antibiotics resistance isn’t just something that happened after the discovery of penicillin.

2. Saturday Review:

   Penicillin was indeed the product of accidental discovery, but the discovery was made, and the knowledge developed, because certain scientists had definite goals in mind. "Chance," Pastuer wrote, "favors only the prepared mind." The mind must be prepared not only by scientific training and technological know-how, but also by the awareness of social needs.

3. Muhammad Ali:

   If they can make penicillin out of mouldy bread, they can sure make something out of you.

4. Alan Cooper:

   Apparently, Neanderthals possessed a good knowledge of medicinal plants and their various anti-inflammatory and pain-relieving properties..., the use of antibiotics would be very surprising, as this is more than 40,000 years before we developed penicillin.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=PENICILLIN
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=PENICILLIN
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Penicillin
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Penicillin
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=PENICILLIN
7. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=PENICILLIN