The degree to which something achieves results.
(Cinematography) An illusion produced by technical means (as in "special effect")
Efficacy is defined as the ability to do what is defined as desired or to be effective at producing a result.
The ratio of the energy delivered (or work done) by a machine to the energy needed (or work required) in operating the machine. The efficiency of any machine is always less than one due to forces such as friction that use up energy unproductively.
Inherent capacity for growth and development; potentiality.
(Psychol.) An emotion or feeling attached to an idea, object, etc.
Find another word for efficaciousness. In this page you can discover 10 synonyms, antonyms, idiomatic expressions, and related words for efficaciousness, like: effectiveness, effect, effectuality, effectualness, efficacy, efficiency, influence, potency, affect and inefficacy.