www.merriam-webster.com/dictionary/efficacy

Efficacy definition is - the power to produce an effect. How to use efficacy in a ... See the full definition for efficacy in the English Language Learners Dictionary.

www.dictionary.com/browse/efficacy

Efficacy definition, capacity for producing a desired result or effect; effectiveness: a remedy of great efficacy. See more.

www.vocabulary.com/dictionary/efficacy

efficacy. The degree to which a method or medicine brings about a specific result is its efficacy. You might not like to eat it, but you can't question the efficacy of ...

www.ldoceonline.com/dictionary/efficacy

efficacy• Sufficient data on safety and efficacy of long-term use of Ritalin in children are not yet available.• Struan, because of its direct descent from a traditional ...

dictionary.cambridge.org/us/dictionary/english/efficacy

efficacy meaning: 1. the ability, especially of a medicine or a method of achieving something, to produce the intended result: 2. the quality of being effective; ...

www.macmillandictionary.com/us/dictionary/american/efficacy

Define efficacy (noun) and get synonyms. What is efficacy (noun)? efficacy (noun) meaning, pronunciation and more by Macmillan Dictionary.

www.collinsdictionary.com/us/dictionary/english/efficacy

Efficacy definition: If you talk about the efficacy of something, you are talking about its effectiveness and... | Meaning, pronunciation, translations and examples .

www.yourdictionary.com/efficacy

efficacy definition: Efficacy is defined as the ability to do what is defined as desired or to be effective at producing a result. (noun) An example of efficacy is when ...

en.oxforddictionaries.com/definition/efficacy