Synonyms
Examples of efficacy in a Sentence
In the planner's view, Rumsfeld had two goals: to demonstrate the efficacy of precision bombing and to "do the war on the cheap."
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Seymour M. Hersh, New Yorker, 7 Apr. 2003
Vaccines exist, but their efficacy against aerosolized plague is unknown.
—Sharon Begley et al., Newsweek, 8 Oct. 2001
… efficacy does not have to be demonstrated before homeopathic products are marketed.
—Alison Abbott et al., Nature, 26 Sept. 1996
questioned the efficacy of the alarms in actually preventing auto theft
Seymour M. Hersh, New Yorker, 7 Apr. 2003
Vaccines exist, but their efficacy against aerosolized plague is unknown.
—Sharon Begley et al., Newsweek, 8 Oct. 2001
… efficacy does not have to be demonstrated before homeopathic products are marketed.
—Alison Abbott et al., Nature, 26 Sept. 1996
questioned the efficacy of the alarms in actually preventing auto theft
Recent Examples on the Web
In a survey from the American Medical Association, over 90% of physicians emphasized the need for clear information about AI to explain decision-making processes, demonstrate efficacy and ensure adherence to medical standards.
—Rob Futrick, Forbes, 27 Sep. 2024
However, more research is needed on the efficacy of essential oils for chronic migraine.
—Cristina Mutchler, Verywell Health, 27 Sep. 2024
The companies would likely decide in 2025 or 2026 on whether to move on to phase 3 trials—larger efficacy experiments needed for possible FDA approval.
—science.org, 26 Sep. 2024
On the other hand, simple things like sleeping and eating well have even more evidence to back up their efficacy on cognitive health.
—Gabe Allen, Discover Magazine, 24 Sep. 2024
See all Example Sentences for efficacy 
Rob Futrick, Forbes, 27 Sep. 2024
However, more research is needed on the efficacy of essential oils for chronic migraine.
—Cristina Mutchler, Verywell Health, 27 Sep. 2024
The companies would likely decide in 2025 or 2026 on whether to move on to phase 3 trials—larger efficacy experiments needed for possible FDA approval.
—science.org, 26 Sep. 2024
On the other hand, simple things like sleeping and eating well have even more evidence to back up their efficacy on cognitive health.
—Gabe Allen, Discover Magazine, 24 Sep. 2024
See all Example Sentences for efficacy
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'efficacy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Cite this Entry
“Efficacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/efficacy. Accessed 6 Oct. 2024.
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