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efficacy

   Also found in: Medical, Wikipedia 0.45 sec.
ef·fi·ca·cy  (f-k-s)
n.
Power or capacity to produce a desired effect; effectiveness.

[Latin efficcia, from efficx, efficc-, efficacious; see efficacious.]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.efficacy - capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"
effectiveness, effectivity, effectuality, effectualness - power to be effective; the quality of being able to bring about an effect
inefficaciousness, inefficacy - a lack of efficacy

efficacy
Translations
efficacy [ˈɛfɪkəsɪ] neficacia
efficacy [ˈɛfɪkəsɪ] nefficacité f
efficacy [ˈɛfɪkəsɪ] nWirksamkeit f
efficacy [ˈɛfɪkəsɪ] nefficacia


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? Mentioned in ? References in classic literature
 
They are not found to be such on the injustice and violence of individuals, and lose their efficacy in proportion to the number combined together, that is, in proportion as their efficacy becomes needful.
A sacred rite of such efficacy that he who finds himself
Like most savages they are firm believers in dreams, and in the power and efficacy of charms and amulets, or medicines as they term them.
 
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