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
Herbal medicines may be inconsistent in strength and efficacy between batches and may not be suitable for use on sensitive skin.6
More research may be needed to help better understand the differences in psoriasis severity between Asian people and people of other ethnicities.
—Sayaka Blickenderfer, Phd, Health, 18 Jan. 2025
Its formula includes a glucose complex to boost the efficacy of retinol while improving skin’s tolerance.
—Christa Joanna Lee, Allure, 17 Jan. 2025
On the plus side, this improves efficacy and makes the serum last longer at the same time.
—Sarah Y. Wu, Glamour, 16 Jan. 2025
Those who benefit will be the peddlers of lies and provable garbage, on everything from the efficacy of vaccines to the reality of climate change to the basic fact of who won the 2020 election.
—New York Daily News Editorial Board, New York Daily News, 13 Jan. 2025
See all Example Sentences for efficacy 
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Sayaka Blickenderfer, Phd, Health, 18 Jan. 2025
Its formula includes a glucose complex to boost the efficacy of retinol while improving skin’s tolerance.
—Christa Joanna Lee, Allure, 17 Jan. 2025
On the plus side, this improves efficacy and makes the serum last longer at the same time.
—Sarah Y. Wu, Glamour, 16 Jan. 2025
Those who benefit will be the peddlers of lies and provable garbage, on everything from the efficacy of vaccines to the reality of climate change to the basic fact of who won the 2020 election.
—New York Daily News Editorial Board, New York Daily News, 13 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 24 Jan. 2025.
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