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
  • Ferulic acid, for its part, can help boost their stability and efficacy—which in sum made the formula more powerful than most antioxidant serums.
    — Deanna Pai, Vogue, 7 Aug. 2026
  • But researchers cautioned that the drug’s efficacy has not yet been proven.
    — The New Yorker, New Yorker, 7 Aug. 2026
Definition of efficacy
Noun
  • The traditional flu shot ranges in effectiveness from 22% to 56%, according to the Mayo Clinic.
    — Berkeley Lovelace Jr, NBC news, 6 Aug. 2026
  • One of the reasons people are reluctant to get a flu shot is because of its sometimes weak effectiveness in protecting against symptoms.
    — Alice Park, Time, 6 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 10 Aug. 2026.

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