Word.ws English Dictionary

efficacity

efficacity noun: efficacy.

Noun

efficacity (countable and uncountable, plural efficacities)

  1. Efficacy.

Forms of efficacity

pluralefficacities

Origin of efficacity

From Middle French efficacité (whence -acity).

Questions about efficacity

What does efficacity mean?
Efficacity means efficacy.
What part of speech is efficacity?
Efficacity is a noun.
What is the plural of efficacity?
The plural of efficacity is efficacities.

Words near efficacity in the dictionary

  1. efficacies
  2. efficacious
  3. efficaciously
  4. efficaciousness
  5. efficacities
  6. efficacity
  7. efficacy
  8. efficience
  9. efficiences
  10. efficiencies
  11. efficiency

Source and license

Adapted from Wiktionary: efficacity (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “efficacity.” Word.ws, https://word.ws/efficacity. Based on Wiktionary, CC BY-SA 4.0.