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Definitions

serum

[seer-uhm] / ˈsɪər əm /


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.

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Of the successful claims, two of the men were cleared by DNA evidence, while blood serum evidence was used to prove innocence in the third.

From Salon ● Aug. 10, 2026

Also, according to Weiss, testosterone injections can cause “aggressive behavior and mood swings, especially during peak serum levels.”

From Slate ● Jul. 16, 2026

In December, European-based Cosmo Pharmaceuticals reported results from a late-stage study of a serum that blocks the hormone driving hair loss directly at the scalp, without entering the bloodstream.

From The Wall Street Journal ● May 1, 2026

The ASA also said that the serum was tested in a different climate to the UK, and may not work similarly.

From BBC ● Apr. 28, 2026

The genetic anomaly that makes me aware during simulations also suggests I could be resistant to serums, so my truth serum testimony might not be reliable.

From "Allegiant" by Veronica Roth

The "Manana sera bonito" singer is the first Latina artist to headline the festival, which draws massive crowds over two consecutive weekends in Indio, California.

From Barron's ● Apr. 12, 2026

“It’s kind of my take on ‘it is what it is,’ ‘lo que sera sera’ kind of thing,” Apollo told ABC News of the album’s title.

From Los Angeles Times ● Jun. 6, 2024

"Que sera sera, whatever will be will be, we're going to Wembley," was how the Rovers fans serenaded their players at the end, with the team taking the acclaim.

From BBC ● Feb. 28, 2023

Giffords’ response was “Sera, sera,” referencing the song “Que sera, sera” or “What will be, will be.”

From Seattle Times ● Jun. 23, 2022

“Oh, qu’elle y sera mal—peu comfortable! And her clothes, they will wear out: how can she get new ones?”

From "Jane Eyre" by Charlotte Brontë

The company sells beauty and wellness products such as facial serums, oils, masks and makeup.

From The Wall Street Journal ● Aug. 6, 2026

Afghanistan already produces a variety of serums including antibiotics, according to manufacturer Milli Shifa Pharmaceutical.

From Barron's ● Feb. 16, 2026

People invest significant time and effort into keeping their skin looking young through masks, creams and serums.

From Science Daily ● Nov. 29, 2025

South Korean serums are better-suited for her skin compared to some Western brands that tend to be more harsh, the 27-year-old graphic designer says.

From BBC ● Aug. 2, 2025

She knew that she would need to control large groups of people in order to stay secure, so she developed a way to do it with serums and transmitters.

From "Divergent" by Veronica Roth




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