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
Recent Examples of efficacy from the Web
A review of meetings' records shows the group itself occasionally wrestled with its identity – and efficacy – and took up reform ideas that ultimately went nowhere.
How did a man who understood better than most the relative safety and efficacy of inoculation choose wrong?
The Food and Drug Administration (FDA) has done a bit of a U-turn on Pfizer's Mylotarg, an acute myeloid leukemia (AML) treatment that the company voluntarily withdrew from the market after follow-up research failed to prove its safety and efficacy.
These are closely related viruses and the existing vaccine should have efficacy against Powassan.
Though the survey, involving 2,897 medical cannabis patients, didn’t track actual drug use or efficacy, the findings fits with previous data.
In a study conducted in Sudan in 2015, a single dose offered 80% protection during the first 2 months—although some participants may have been exposed to cholera the year before, essentially making the vaccine a booster and increasing its efficacy.
The trio of shootings this week, however, served as a newsflash that there was still work to be done, raising questions about the efficacy of security efforts downtown.
The curriculum is specifically designed toward fostering character development and responsibility geared to elevating individual empowerment, efficacy and self-esteem.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'efficacy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Synonymsedge, effectiveness, effectualness, efficaciousness, efficacity, efficiency, productiveness
Antonymsineffectiveness, ineffectuality, ineffectualness, inefficiency
Related Wordsability, capability, capacity; potency, puissance, strength
Near Antonymsinability, inadequacy, inadequateness, incompetence, incompetency
EFFICACY Defined for English Language Learners
Definition of efficacy for English Language Learners
: the power to produce a desired result or effect
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