penicillin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

The discovery began with an unexpected laboratory result, similar to many famous scientific breakthroughs including X-rays, penicillin, Viagra and modern weight loss medications.

From Science Daily • Mar. 14, 2026

Common problems that could have been treated with an office visit and a few penicillin pills will blossom into heart-valve infections and organ failure.

From MarketWatch • Jan. 26, 2026

The U.K. has long been a powerhouse in drug discovery, from the 1928 penicillin breakthrough to the landmark Oxford-AstraZeneca Covid-19 vaccine in 2020.

From The Wall Street Journal • Dec. 1, 2025

Inside the medicine cabinet, three Extra Strength Tylenol, a box of Imodium, some Midol, and an old bottle of penicillin, which I’m mildly allergic to.

From "Anthem of a Reluctant Prophet" by Joanne Proulx