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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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noun- Effectiveness.

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Usage examples (20)
  • We must also increase the monitoring of anti-malaria drug efficacity.
  • I think it's important though, to examine from time-to-time, the efficacity of one's marketing strategies to see if they're really working.
  • (As will be seen, in quantum physics these relationships are reversed and enriched: randomness and chaos underlie and constitute the efficacity of both manifest order...
  • Otherwise this unknowable is not only compatible with knowledge but is the efficacity of knowledge, perhaps of all possible knowledge, assuming the world is like this...
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.