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efficacy
used in Picture of Dorian Gray - 13 chapter version

only 1 use
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Definition
effectiveness (the ability to produce a desired result)
  • Men had, as a rule, regarded it as a mode of warning, had claimed for it a certain moral efficacy in the formation of character, had praised it as something that taught us what to follow and showed us what to avoid.
    Chapter 3 (93% in)

There are no more uses of "efficacy" in Picture of Dorian Gray - 13 chapter version.

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