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efficacy

[ef-i-kuh-see] / ˈɛf ɪ kə si /


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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These breaks are a welcome respite from long stretches of sitting and screen-based learning, which is common in some classrooms despite questions about its efficacy.

From Slate Sep. 5, 2026

Whether that estimate is conservative will largely depend on the magnitude of the efficacy of Novartis’s drug and the U.S.

From The Wall Street Journal Sep. 3, 2026

He added efficacy also depended on the scale of the intervention, and that controlling populations this way risked becoming a "forever enterprise."

From Barron's Aug. 7, 2026

A spokesman added: "All pet parasite treatments undergo rigorous scientific assessment by independent regulatory authorities before approval for use, and their safety and efficacy continue to be monitored."

From BBC Aug. 5, 2026

That’s the kind of fatalism and pessimism typical of a repressive feudal system, where peasants have no reason to believe in the efficacy of their own work.

From "Outliers" by Malcolm Gladwell

To get a little technical, the Pfizer data, in particular, had wide confidence intervals—basically, the efficacies are more like pretty good estimates, than numbers that the scientists are really certain of.

From Slate Jun. 22, 2022

For young kids, there are now two vaccines available with very similar mechanisms but different doses, dosing intervals and efficacies.

From Scientific American Jun. 15, 2022

That would make it still well above the 50% threshold needed for FDA authorization, but would pale in comparison to the 90-plus efficacies of other COVID-19 vaccines.

From Science Magazine Mar. 25, 2021

Further tests would be needed to judge how much the 2P mutation contributes to the overall efficacies of the frontrunner vaccines.

From National Geographic Dec. 31, 2020

That these two are different will easily be clear to anyone who passes in review their respective efficacies.

From The Consolation of Philosophy by H. R. (Henry Rosher) James




Vocabulary lists containing efficacy


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