What is the meaning of efficacy?

noun

  • Capacity or power to produce a desired effect.
    • usage: "concern about the safety and efficacy of the vaccine"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). efficacy. Retrieved September 20, 2026, from http://smartdefine.org/efficacy/definitions/1211918
ChicagoWordNet. 2010. "efficacy" http://smartdefine.org/efficacy/definitions/1211918 (accessed September 20, 2026).
HarvardWordNet 2010, efficacy, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/efficacy/definitions/1211918>.
MLAWordNet. "efficacy" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/efficacy/definitions/1211918>
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