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
  • Huynh described the phase 3 results as clinically meaningful and likely to support regulatory approval, but said the primary efficacy result landed at the low end of investor expectations.
    — Annika Kim Constantino, CNBC, 23 Oct. 2026
  • While that efficacy doesn’t match the performance of a rival drug from Roche, Novartis’ treatment has a cleaner safety profile that could give it a shot at being competitive in the market.
    — Andrew Joseph, STAT, 23 Oct. 2026
Definition of efficacy
Noun
  • The idea would be to equip all parties, from payers to providers to patients, with insights into effectiveness, cost, and value.
    — Dana P. Goldman, STAT, 22 Oct. 2026
  • Other topical treatments—such as retinoids, peptides, and vitamin C—are backed by years of research on safety and effectiveness.
    — Ashley Abramson, Allure, 22 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 27 Oct. 2026.

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