efficacy


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ef·fi·ca·cy

 (ĕf′ĭ-kə-sē)
n.
Power or capacity to produce a desired effect; effectiveness.

[Latin efficācia, from efficāx, efficāc-, efficacious; see efficacious.]

efficacy

(ˈɛfɪkəsɪ) or

efficaciousness

n
the quality of being successful in producing an intended result; effectiveness

ef•fi•ca•cy

(ˈɛf ɪ kə si)

n.
capacity for producing a desired result or effect; effectiveness.
[1520–30; < Latin]
ThesaurusAntonymsRelated WordsSynonymsLegend:
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

noun effectiveness, efficiency, power, value, success, strength, virtue, vigour, use, usefulness, potency, fruitfulness, productiveness, efficaciousness Recent medical studies confirm the efficacy of a healthier lifestyle.

efficacy

noun
The power or capacity to produce a desired result:
Translations
فاعِلِيَّه
effektvirkning
tehokkuus
verkun, áhrif; gagn
efektywnośćsktuteczność
effektivitet
yararlılık

efficacy

[ˈefɪkəsɪ] N (frm) → eficacia f

efficacy

[ˈɛfɪkəsi] nefficacité f

efficacy

nWirksamkeit f

efficacy

[ˈɛfɪkəsɪ] n (frm) → efficacia

efficacious

(efiˈkeiʃəs) adjective
producing the result intended. The medicine was most efficacious.
efficacy (ˈefikəsi) noun

efficacy

n eficacia, efectividad f; (clinical research) eficacia bajo condiciones controladas; [Note: While English-speaking health professionals often distinguish between efficacy and effectiveness, most Spanish-speaking health professionals use eficacia and efectividad interchangeably.]
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.
Yet it is only necessary to abandon the false view (adopted to gratify the "heroes") of the efficacy of the directions issued in wartime by commanders, in order to find this unknown quantity.
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.
But it is given to us sometimes even in our every-day life to witness the saving influence of a noble nature, the divine efficacy of rescue that may lie in a self-subduing act of fellowship.
13) Pliny notices the efficacy of the flesh of a tortoise against withcraft.
The good woman no sooner felt the gold within her palm, than her temper began (such is the efficacy of that panacea) to be mollified.
A sacred rite of such efficacy that he who finds himself
All this coast is much infested with ravenous beasts, monkeys, and serpents, of which last here are some seven feet in length, and thicker than an ordinary man; in the head of this serpent is found a stone about the bigness of an egg, resembling bezoar, and of great efficacy, as it is said, against all kinds of poison.
Now, I say, is the time when the virtue that is in thee is ripe, and endowed with efficacy to work the good that is looked for from thee.
The efficacy of various principles is now well understood, which were either not known at all, or imperfectly known to the ancients.
I wonder who first discovered the efficacy of poetry in driving away love
It would take a strong animal to test the efficacy of his new scheme.