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
  • Hope Florida Foundation got a new board and filed tax returns, but criticisms of its efficacy still dog its leaders.
    — Christopher Spata, Miami Herald, 17 Oct. 2026
  • In oncology, where treatment efficacy hinges on precise, patient‑specific data, even a small AI hallucination, such as a mistimed test, can misdirect care.
    — Brad Kreick, Forbes.com, 16 Oct. 2026
Definition of efficacy
Noun
  • The effectiveness of the approach will depend on how well the systems perform under operational conditions and against evolving electronic warfare threats.
    — Aamir Khollam, Interesting Engineering, 16 Oct. 2026
  • That recommendation went against the scientific conclusion of FDA’s staff scientists, who reiterated that none of the peptides had been studied enough to establish their safety and effectiveness.
    — ABC News, ABC News, 15 Oct. 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 20 Oct. 2026.

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