efficacious

CEFRC1

/ˌɛf.ɪˈkeɪ.ʃəs/

adjective

Türkçe translations

Translating…

In plain English

01
adjective
Able to produce the desired result.
02
adjective
Extra detail
Effective; possessing efficacy.

Examples

The new medicine was efficacious in treating the disease.
The new treatment proved to be highly efficacious in clinical trials.

At a glance

Sits at C1 on the CEFR scale

Senses: 2
Parts of speech: 1
Citations: 5
Synonyms: 1

Also pronounced

/ˌef.əˈkæɪ.ʃəs/

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In context

Efficacious solutions are always in demand.
This medicine is efficacious.
For, that the ordure, which continually gathers on the skin, would ſoon ſtop the pores of it, if the ſweat were not furniſht with ſome efficacious diſſolvent to open and pierce them.

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The doctor prescribed a highly blank treatment for the stubborn infection.

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Citations

The word in print, with each source given in full.

For, that the ordure, which continually gathers on the skin, would ſoon ſtop the pores of it, if the ſweat were not furniſht with ſome efficacious diſſolvent to open and pierce them.
1669 August 25, “[An Accompt of Some Books.] III. Ottonis Tachenii Hippocrates Chymicus. Venetiis in 12º.”, in Philosophical Transactions: Giving Some Accompt of the Present Under...
"I see," said he, with a smile, "that you, like myself, are trying the effect of this sweet evening for the headach. I have already found it very efficacious, and so, I think, have you,"—again smiling, as he noticed the deep blush which his sudden appearance had produced.
1834, L[etitia] E[lizabeth] L[andon], chapter XXXV, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 292
He would weep for hours together, and I verily believe that to the very end this spoilt child of life thought his weak tears in some way efficacious.
1898, H.G. Wells, The War of the Worlds, London: William Heinemann, page 218
The unquenchable American moralism and the American faith in violence are not just twin symptoms of some character neurosis taking the form of a protracted adolescence, which presages an eventual maturity. They constitute a full-grown, firmly installed national psychosis, founded, as are all psychoses, on the efficacious denial of reality.
1969, Susan Sontag, “What’s Happening in America”, in Styles of Radical Will, Kindle edition, Penguin Modern Classics, published 2009, →ISBN, page 195
By the end of the tenth century, Edith's humility had inspired a cult of holy wells in Kent, Staffordshire, and Herefordshire. Their waters were deemed efficacious for eye conditions.
1999, Robert Lacey, Danny Danziger, The Year 1000: What life was like at the turn of The First Millennium, London: Abacus, published 2000, page 170

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Origin

adjective

From Old French efficacieux, from Latin efficāx (“efficacious”) + -ous, from efficere (“to effect, to accomplish”); see effect.

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The doctor prescribed a highly blank— treatment for the stubborn infection.

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Origin

adjective

The doctor prescribed a highly blank treatment for the stubborn infection.