as in effectiveness
the power to produce a desired result
questioned the efficacy of the alarms in actually preventing auto theft
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Recent Examples of efficacy
The details of the CRS regime are complex, and its efficacy is imperfect.
—
Alex Raskolnikov, Foreign Affairs, 19 Feb. 2025
The cuts hit the Center for Veterinary Medicine, an arm of the Food and Drug Administration that regulates the safety and efficacy of drugs, food and medical devices for animals.
—Sydney Lupkin, NPR, 19 Feb. 2025
As more states legalize cannabis for medical use, there is a growing demand for rigorous scientific studies to validate its efficacy and safety.
—Tribune Content Agency, The Mercury News, 14 Feb. 2025
Clinical trials: Human participants evaluate the product’s safety and efficacy.
—Boutayna Chokrane, WIRED, 13 Feb. 2025
See All Example Sentences for efficacy
Alex Raskolnikov, Foreign Affairs, 19 Feb. 2025
The cuts hit the Center for Veterinary Medicine, an arm of the Food and Drug Administration that regulates the safety and efficacy of drugs, food and medical devices for animals.
—Sydney Lupkin, NPR, 19 Feb. 2025
As more states legalize cannabis for medical use, there is a growing demand for rigorous scientific studies to validate its efficacy and safety.
—Tribune Content Agency, The Mercury News, 14 Feb. 2025
Clinical trials: Human participants evaluate the product’s safety and efficacy.
—Boutayna Chokrane, WIRED, 13 Feb. 2025
See All Example Sentences for efficacy
Cite this Entry
“Efficacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficacy. Accessed 9 Mar. 2025.
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