efficacy

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Significantly this efficacy is achieved with a single dose, as opposed to a treatment over five days for the established drugs.

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Definitions (5)

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  1. noun Power or capacity to produce a desired effect; effectiveness.

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Examples (47)

  • Substitution of NNS for a nutritive sweetener generally elicits incomplete energy compensation, but evidence of long-term efficacy for weight management is not available. —  American Journal of Clinical Nutrition current issue
  • Audience Versus Ad Efficacy: Moving Advertising To Digital Video It seems not a fortnight goes by without a discussion on digital video ad efficacy, ad ...
  • In the Annals study, those who scored high on psychological measures of self-efficacy were nearly three times as likely to be exercising after a year as those with lower self-efficacy scores, whether or not they owned an exercise machine. —  RutlandHerald.com
  • Just as the NY Times ran an intellectually bankrupt review of the book by Lobby apologist Leslie Gelb denying its efficacy, a front page story highlighted how "Freedoms Watch" is desperately trying to get the US involved in a war with Iran funded to the tune of $200 million by stalwarts of the Republican Jewish Coalition such billionaires Sheldon Adelson and Mel Sembler. —  California Literary Review
  • Surveillance proponents maintain that while it is difficult to quantitatively illustrate cameras 'efficacy, they deter offenders and provide cities with an overall sense of security.
 

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Roget's II Roget's II: The New Thesaurus

Allen's Allen's Synonyms and Antonyms

Used in the same context Used in the Same Context

effectiveness ·  validity ·  potency ·  usefulness ·  importance ·  efficiency ·  merit ·  fitness ·  accuracy ·  purity ·  clearness ·  unity
Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Latin efficācia, from efficāx, efficāc-, efficacious; see efficacious.

Toggle Century etymologies Century Dictionary (1)

  1. = French efficace = Provencal efficacia = Spanish eficacia = Portuguese Italian efficacia, from Latin efficacia, efficacy, from efficax, efficacious: see efficacious.
 

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/ˈɛfɪkəsi/
by American Heritage
by Grant Barrett

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