Efficacy is a related term of effectivity.
In uncountable terms the difference between effectivity and efficacy
is that effectivity is the ability or power to be effective while efficacy is ability to produce a desired amount of a desired effect.
effectivity
English
Noun
(uncountable) The ability or power to be effective.
(countable) A measure of the effectiveness of something.
Related terms
* effect
* effective
* effectiveness
* effector
* effectual
* effectuate
* efficacious
* efficacity
* efficacy
* efficiency
* efficient
See also
* effectively
efficacy
English
Noun
(-)
(uncountable) Ability to produce a desired amount of a desired effect.
Synonyms
* efficacity
Related terms
* effect
* effective
* effectiveness
* effectivity
* effector
* effectual
* effectuate
* efficacious
* efficacity
* efficiency
* efficient
External links
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