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- Dictionaryefficacy/ˈɛfɪkəsi/
noun
- 1. the ability to produce a desired or intended result: formal "there is little information on the efficacy of this treatment"
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Efficacy is the ability of something to produce the intended result or how well a treatment or drug works under controlled conditions. Learn more about the meaning, synonyms, collocations and usage of efficacy with Cambridge Dictionary.
Efficacy is the power to produce an effect or a desired result. Learn the synonyms, examples, word history, and usage of efficacy from the Merriam-Webster dictionary.
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 is the power or capacity to produce a desired effect or result. Learn the origin, synonyms, antonyms, and sentence examples of this word from YourDictionary.
Definition of efficacy noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
