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Thesaurus: efficacy

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.

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Definitions

  1. n. 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.
  2. n. capacity or power to produce a desired effect
  3. 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. "Of noxious efficacy." Milton. Syn. -- Virtue; force; energy; potency; efficiency.
  4. Power to produce effects; operation or energy of an agent orforce; production of the effect intended; as, the efficacy ofmedicine in counteracting disease; the efficacy of prayer. "Ofnoxious efficacy." Milton.
  5. n:100 n. capacity or power to produce a desired effect