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Definition efficacy

Etymology

From Old French efficace, from Late Latin effic?cia (“efficacy”), from effic?x (“efficacious”); see efficacious.

Noun

efficacy (usually uncountable, plural efficacies)

1. Ability to produce a desired effect under ideal testing conditions.
2. Degree of ability to produce a desired effect.

Results 37 Words with the letters EFFICACY

You can also try words with the phrase EFFICACY, words starting with the letters EFFICACY, or words ending in the letters EFFICACY.

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