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."
—
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
Chronic back/neck pain: Preliminary trials suggest vaporized cannabis may rival oxycodone’s efficacy.
—Tribune Content Agency, The Mercury News, 5 Feb. 2025
This is not to say that parents, pediatricians, and scientists should not ask questions about the efficacy and safety of vaccines.
—Eleanor Menzin, TIME, 30 Jan. 2025
This ingredient not only hydrates but also enhances the efficacy of other hydrating agents by creating a moisture-retentive film on the skin.
—Tira Urquhart, Essence, 29 Jan. 2025
Kennedy has repeatedly questioned the efficacy and even safety of vaccines touted by most doctors as medical miracles responsible for saving tens of million lives globally.
—Dave Goldiner, New York Daily News, 28 Jan. 2025
See all Example Sentences for efficacy 
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Tribune Content Agency, The Mercury News, 5 Feb. 2025
This is not to say that parents, pediatricians, and scientists should not ask questions about the efficacy and safety of vaccines.
—Eleanor Menzin, TIME, 30 Jan. 2025
This ingredient not only hydrates but also enhances the efficacy of other hydrating agents by creating a moisture-retentive film on the skin.
—Tira Urquhart, Essence, 29 Jan. 2025
Kennedy has repeatedly questioned the efficacy and even safety of vaccines touted by most doctors as medical miracles responsible for saving tens of million lives globally.
—Dave Goldiner, New York Daily News, 28 Jan. 2025
See all Example Sentences for efficacy
Cite this Entry
“Efficacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/efficacy. Accessed 25 Feb. 2025.
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