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Efficacy meaning

efficacy - 4 dictionary results

  1. 1. capacity or power to produce a desired effect; " concern about the safety and efficacy of the vaccine"
  2. 2. Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting disease; the efficacy of prayer.
  3. 3. Efficacious.
  4. 4. Power to produce effects; virtue; energy.

efficacy - examples of usage

  1. The pain, it is true, may be avoided by using a salt which is less easily dissociated, or in which the mercury is bound up in a complex ion, but by so doing we diminish the efficacy of the remedy. - "The Mechanism of Life", Stéphane Leduc.
  2. The only difference was that while Sinn Fein held that it always was and always would be useless, English policy being what it always had been, the Parliamentary Party held that the Cabinet had by its action since the Rising destroyed the efficacy of the normally useful and legitimate means of reform. - "The Evolution of Sinn Fein", Robert Mitchell Henry.
  3. Having been among the early converts in this part of the globe to its efficacy, I took an early part in recommending it to my countrymen. - "Makers of Modern Medicine", James J. Walsh.
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