Efficacy

ahd-5
  • noun. Power or capacity to produce a desired effect; effectiveness.
    • The Century Dictionary and Cyclopedia
  • noun. The quality of being efficacious or effectual; production of, or the capacity of producing, the effect intended or desired; effectiveness.
  • noun. Synonyms Efficiency, etc. (see effectiveness); virtue, force, energy.
    • the GNU version of the Collaborative International Dictionary of English
  • noun. Power to produce effects; operation or energy of an agent or force; production of the effect intended
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. Ability to produce a desired amount of a desired effect.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. capacity or power to produce a desired effect
    • Word Usage
    "It has been shown to have long-term efficacy, meaning it could be administered in small doses, potentially reducing severity of side effects."
    Hypernym
    Words that are more generic or abstract
    effectiveness  effectivity  effectuality  effectualness  
    Same Context
    Words that are found in similar contexts
    accuracy  benefit  clearness  effectiveness  efficiency  
    Synonym
    Words with the same meaning
    effectiveness  efficacity  efficiency  energy  force  
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