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EFFICACY definition: 1. the ability of something to produce the intended result: 2. how well a particular treatment or…. Learn more.
: the power to produce an effect. Synonyms. edge. effectiveness. effectualness. efficaciousness. efficacity. efficiency. productiveness. See all Synonyms & Antonyms in Thesaurus. 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."
Efficacy is a more formal way to say effectiveness, both of which stem from the Latin verb efficere "to work out, accomplish." The effectiveness, or efficacy, of something is how well it works or brings the results you hoped for.
Efficacy definition: the capacity for producing a desired result or effect. See examples of EFFICACY used in a sentence.
If you talk about the efficacy of something, you are talking about its effectiveness and its ability to do what it is supposed to. Recent medical studies confirm the efficacy of a healthier lifestyle.
Efficacy definition: Power or capacity to produce a desired effect; effectiveness.
Definition of efficacy noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
