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 ?
Gamut, who had stood prepared to pour forth his spirit in song when the visitors entered, after delaying a moment, drew a strain from his pipe, and commenced a hymn that might have worked a miracle, had faith in is efficacy been of much avail.
It was as potent, and perhaps endowed with the same kind of efficacy, as a galvanic ring
It soon proved its efficacy, and redeemed the leech's pledge.
Perhaps you feel equal to discussing the efficacy of spiritual self-chastisement with a person who closes her lips into a thin line and looks at you out of blank, uncomprehending eyes
She had already satisfied herself that he thought Harriet a beautiful girl, which she trusted, with such frequent meetings at Hartfield, was foundation enough on his side; and on Harriet's there could be little doubt that the idea of being preferred by him would have all the usual weight and efficacy.
But a day spent in sitting shivering over the fire with a book in her hand, which she was unable to read, or in lying, weary and languid, on a sofa, did not speak much in favour of her amendment; and when, at last, she went early to bed, more and more indisposed, Colonel Brandon was only astonished at her sister's composure, who, though attending and nursing her the whole day, against Marianne inclination, and forcing proper medicines on her at night, trusted, like Marianne, to the certainty and efficacy of sleep, and felt no real alarm.
She respec tfully declined taking any of the remedies which the housekeeper offered, and merely requested permission to try the efficacy of a walk in the fr esh air.
Crunches looking about, as if he rather expected to see the loaf disappear under the efficacy of his wife's petitions.
He had inherited from his mother some acquaintance with medicinal herbs and their preparation--a little store of wisdom which she had imparted to him as a solemn bequest--but of late years he had had doubts about the lawfulness of applying this knowledge, believing that herbs could have no efficacy without prayer, and that prayer might suffice without herbs; so that the inherited delight he had in wandering in the fields in search of foxglove and dandelion and coltsfoot, began to wear to him the character of a temptation.
She returned to the study and related what had just occurred, adding some sarcastic comments on the efficacy of moral force in maintaining collegiate discipline.
Moralists had, as a rule, regarded it as a mode of warning, had claimed for it a certain ethical efficacy in the formation of character, had praised it as something that taught us what to follow and showed us what to avoid.
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.