efficacy Meaning in Cambridge American English Dictionary
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Meaning of "efficacy" - American English Dictionary

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efficacynoun [U]

 us   /ˈef·ɪ·kə·si/
the quality of being effective; effectiveness: The drug's efficacy has been questioned by consumer advocates.
Translations of “efficacy”
in Chinese (Traditional) 功效,效力,效能…
in Chinese (Simplified) 功效,效力,效验…
(Definition of efficacy from the Cambridge Academic Content Dictionary © Cambridge University Press)
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