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
  • Marlow’s testimony also challenged the efficacy of Flock cameras and argued that the only situations that they have been studied and found to deter crime is in relation to car thefts and property crimes.
    — Graham Hurley, CNN Money, 1 Nov. 2026
  • The committee noted conflicting evidence on the drug’s efficacy and clear safety risks, including brain bleeds, in large numbers of patients.
    — C. Joseph Ross Daval, STAT, 30 Oct. 2026
Definition of efficacy
Noun
  • Its effectiveness will depend on how federal agencies identify emerging threats and respond to companies or individuals that cross legal boundaries.
    — Aamir Khollam, Interesting Engineering, 6 Nov. 2026
  • Defense Secretary Pete Hegseth has repeatedly questioned whether women should serve in ground combat and special operations roles, arguing that their inclusion could undermine military effectiveness and physical standards.
    — James LaPorta, CBS News, 5 Nov. 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 7 Nov. 2026.

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