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Showing results for penicillin. Search instead for penicilliums.
Definitions

penicillin

[pen-uh-sil-in] / ˌpɛn əˈsɪl ɪn /


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.

Some important drugs, including penicillin, rely on small ring-shaped molecules that store large amounts of internal tension.

From Science Daily • May 20, 2026

Lifeline follows the story of Sir Alexander Fleming's discovery of penicillin at St Mary's Hospital in Paddington in 1928, weaving his historical journey with a contemporary narrative centred on a junior doctor in Edinburgh.

From BBC • Apr. 5, 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

It’s around 3 p.m. on a Thursday, and Joni Gonzalez, a nurse, has just learned to make the perfect batch of penicillin.

From The Wall Street Journal • Mar. 6, 2026

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




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