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Definitions

efficacy

[ef-i-kuh-see] / ˈɛf ɪ kə si /


Example Sentences

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They add: "Assessing long-term efficacy is critical since those who work night shifts for many years would need to consistently consume melatonin supplements over that time frame to maximize the potential cancer prevention benefits."

From Science Daily • May 30, 2026

Brain-imaging studies offer a possible explanation for EMDR’s efficacy.

From The Wall Street Journal • May 26, 2026

The trial evaluated the therapy’s efficacy and safety on adults who are overweight and had other medical conditions such as type 2 diabetes, chronic pain and cardiovascular issues.

From The Wall Street Journal • May 21, 2026

“The clean safety profile, combined with best-in-class efficacy across all doses, makes this a clean win” for Lilly, according to RBC Capital Markets analyst Trung Huynh.

From MarketWatch • May 21, 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




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