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Effectivenees vs Efficacy - What's the difference?

effectivenees | efficacy |

Effectivenees is likely misspelled.


Effectivenees has no English definition.

As a noun efficacy is

ability to produce a desired amount of a desired effect.

effectivenees

Not English

Effectivenees has no English definition. It may be misspelled.

efficacy

English

Noun

(-)
  • (uncountable) Ability to produce a desired amount of a desired effect.
  • Synonyms

    * efficacity