efficacity

noun

ˌe-fə-ˈka-sə-tē How to pronounce efficacity (audio)
Definition of efficacitynext
as in efficacy
the power to produce a desired result the limited efficacity of the primitive tool as an instrument for cutting raw meat

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of efficacity Employing touchscreens for voting results in the adoption of technology for its own sake rather than to provide efficacity. — Letter Writers, Twin Cities, 10 Nov. 2019
Recent Examples of Synonyms for efficacity
  1. efficacy
  2. effectiveness
Noun
  • Johnson, chairman of the subcommittee on investigations, had sought to open a parallel avenue of congressional investigation about Fauci's role in responding to the COVID-19 pandemic, including the safety and efficacy of the COVID-19 vaccines.
    — ABC News, ABC News, 14 Aug. 2026
  • However, Schneider is skeptical about the efficacy of flour as a pest repellent.
    — Ashley Chalmers, The Spruce, 14 Aug. 2026
Definition of efficacy
Noun
  • Under Kennedy, the FDA has set up extra hurdles for vaccine testing and blocked the publication of research into the effectiveness of COVID-19 shots.
    — Matthew Perrone, Chicago Tribune, 19 Aug. 2026
  • Under Kennedy, the FDA has also set up extra hurdles for vaccine testing and blocked the publication of research into the effectiveness of COVID-19 shots.
    — Ali Swenson, Los Angeles Times, 19 Aug. 2026
Definition of effectiveness

Browse Nearby Words

efficaciousness
efficacity
efficacy
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Cite this Entry

“Efficacity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficacity. Accessed 21 Aug. 2026.

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