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Definitions

placebo

[pluh-see-boh, plah-chey-boh] / pləˈsi boʊ, plɑˈtʃeɪ boʊ /


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.

Around 40 percent of patients taking baxdrostat reached healthy blood pressure levels, compared with fewer than 20 percent in the placebo group.

From Science Daily • Apr. 3, 2026

The trial also demonstrated improvement relative to a placebo.

From Barron's • Mar. 30, 2026

A drug also needs to be proven to work better than a placebo.

From Slate • Mar. 30, 2026

On average, participants began taking vitamin D supplements or placebo about three days after receiving their positive COVID-19 test.

From Science Daily • Mar. 15, 2026

Modern trials of the efficacy of therapies depend on the idea that an effective therapy must perform better than a placebo.

From "The Invention of Science" by David Wootton