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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.

Participants were randomly assigned to take either solriamfetol or a placebo on workdays over a four-week period.

From Science Daily • Apr. 1, 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

The company said patients who were on the highest dose lost 15.3% of their weight while those in the placebo group lost 2.6%.

From The Wall Street Journal • Mar. 19, 2026

If placebo effects were this good, they should just make placebos the way to treat depression—maybe that’s what they did; maybe Zoloft was cornstarch.

From "It’s Kind of a Funny Story" by Ned Vizzini