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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.

Detecting such a strong signal from just 1 milliliter of serum was unexpected.

From Science Daily • Feb. 17, 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

As the YouTube hit demonstrates, hot sauce isn’t just for daredevils and masochists: It’s a truth serum.

From The Wall Street Journal • Nov. 20, 2025

The playfulness kicks in when George and Kathryn invite the other suspects over for a dinner spiced with garlic and truth serum.

From Los Angeles Times • Mar. 13, 2025

“They want to get to the Weapons Lab and—” “—steal the memory serum, yeah, I heard.”

From "Allegiant" by Veronica Roth