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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.

To confirm their clinical relevance, we studied serum samples from 192 breast cancer patients enrolled in the I-SPY 2 neoadjuvant chemotherapy trial.

From Science Daily • Feb. 17, 2026

Pitt espouses a concept of simplicity in his men’s skincare routine — a three-step ritual starting with cleansing, serum to target signs of aging and then cream to lock in moisture.

From Los Angeles Times • Jan. 5, 2026

Well, it's happened - and the gooey elasticity is key, according to a viral TikTok challenge promoting the serum.

From BBC • Jan. 2, 2026

After years of being mistakenly linked to high serum cholesterol, eggs were rolled out to the public as a “healthy” food by the FDA External link in December 2024 External link.

From Barron's • Dec. 11, 2025

The more important thing for me to do is to use my knowledge of chaos, of attacks, to keep Nita and her friends from stealing the death serum.

From "Allegiant" by Veronica Roth




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