Efficacy Definition

ĕfĭ-kə-sē
noun
Power to produce effects or intended results; effectiveness.
Webster's New World

(uncountable) Ability to produce a desired amount of a desired effect.

Wiktionary
Synonyms:
Antonyms:

Other Word Forms of Efficacy

Noun

Singular:
efficacy
Plural:
efficacies

Origin of Efficacy

  • From Old French efficace, from Late Latin efficacia (“efficacy”), from Latin efficax (“efficacious”); see efficacious.

    From Wiktionary

  • Latin efficācia from efficāx efficāc- efficacious efficacious

    From American Heritage Dictionary of the English Language, 5th Edition

Efficacy Sentence Examples

  • He was a firm believer in the efficacy of culture.

  • Thus he allowed the necessity of good works to salvation, but not in the old sense; proposed to allow the seven sacraments, but only as rites which had no inherent efficacy to salvation, and so on.

  • When its efficacy was not eternal, its effect was considered to endure for twenty years.

  • Many topical applications are of great efficacy.

  • Suarez endeavoured to reconcile this view with the more orthodox doctrines of the efficacy of grace and special election, maintaining that, though all share in an absolutely sufficient grace, there is granted to the elect a grace which is so adapted to their peculiar dispositions and circumstances that they infallibly, though at the same time quite freely, yield themselves to its influence.

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Words Starting With

EEFEFF

Words Ending With

YCYACY

Unscrambles

efficacy

Words Starting With E and Ending With Y

Starts With E & Ends With YStarts With EF & Ends With YStarts With E & Ends With CY

Word Length

8 Letter Words8 Letter Words Starting With E8 Letter Words Ending With Y