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
Their anti-aging oils and serums are particularly acclaimed for their efficacy and luxurious feel.
—
Julie Loffredi, Forbes, 6 Mar. 2025
Public health programs conducted from the 1930s through the 2000s, however, failed – not because of the efficacy of the treatments but because of socioeconomic conditions.
—Powel H. Kazanjian, The Conversation, 5 Mar. 2025
From swank multi-passenger craft to utilitarian two-seaters, the light segment owes its popularity to design efficacy, a suite of safety features typically found on larger helicopters, and innate versatility.
—Michael Verdon, Robb Report, 2 Mar. 2025
Skepticism of the law’s efficacy and of the motives of the attorneys who advocated for mandatory reserves recently spilled into public during a September legal conference held at the University of Miami.
—Alexandra Glorioso, Miami Herald, 1 Mar. 2025
See All Example Sentences for efficacy
Julie Loffredi, Forbes, 6 Mar. 2025
Public health programs conducted from the 1930s through the 2000s, however, failed – not because of the efficacy of the treatments but because of socioeconomic conditions.
—Powel H. Kazanjian, The Conversation, 5 Mar. 2025
From swank multi-passenger craft to utilitarian two-seaters, the light segment owes its popularity to design efficacy, a suite of safety features typically found on larger helicopters, and innate versatility.
—Michael Verdon, Robb Report, 2 Mar. 2025
Skepticism of the law’s efficacy and of the motives of the attorneys who advocated for mandatory reserves recently spilled into public during a September legal conference held at the University of Miami.
—Alexandra Glorioso, Miami Herald, 1 Mar. 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 13 Mar. 2025.
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