penicillin
Example Sentences
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Some bacteria produce beta-lactamases that disable antibiotics such as penicillin by breaking open a critical part of their chemical structure, known as the beta-lactam ring.
From Science Daily ● Oct. 16, 2026
Italian penicillin nonnas have been several centuries ahead of me on that front.
From Salon ● Sep. 28, 2026
Founded in 1874 by a group of friends in a dancing club, Hearts has been playing organized soccer since before the great Scottish inventions of the telephone, penicillin, or the deep-fried Mars bar.
From The Wall Street Journal ● May 15, 2026
Testing revealed the most common species was penicillium chrysogenum, famous because it is used to produce the penicillin antibiotic but it can cause allergic reactions or infections in people with compromised immune systems.
From BBC ● Mar. 19, 2026
She broke open one of the tiny penicillin bottles she often bought when she shopped at a pharmacy, and tried giving my brothers a penicillin injection.
From "Tasting the Sky" by Ibtisam Barakat
Some bacteria have developed the ability to break down beta-lactam antibiotics like penicillins and cephalosporins, making them ineffective.
From Science Daily ● Feb. 1, 2024
"The fungus growing on the hedgehog was releasing penicillins," explained Prof Holmes.
From BBC ● Jan. 5, 2022
The second were synthetic penicillins, modified in the lab to resist the bugs' enzymes.
From The Guardian ● Jan. 24, 2013
It steadily gained resistance against entire classes of antibiotics: first the penicillins in the 1960s, then the tetracyclines in the 1980s, and Cipro and its chemical cousins, known as fluoroquinolones, in the 1990s.
From Scientific American ● May 4, 2012
Early penicillins were active mainly against the berry-shaped microbes or cocci, such as streptococci, staphylococci and pneumococci.
From Time Magazine Archive
Vocabulary lists containing penicillin
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