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  1. Dictionary
    Ef·fi·ca·cious
    /ˌefəˈkāSHəs/

    adjective

    • 1. (of something inanimate or abstract) successful in producing a desired or intended result; effective: formal "the vaccine has proved both efficacious and safe"
  2. efficacious: [adjective] having the power to produce a desired effect.

  3. EFFICACIOUS definition: 1. able to produce the intended result: 2. (used about a treatment or drug) working well under…. Learn more.

  4. Efficacious definition: capable of having the desired result or effect; effective as a means, measure, remedy, etc.. See examples of EFFICACIOUS used in a sentence.

  5. efficacious: 1 adj marked by qualities giving the power to produce an intended effect “"written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley” “the medicine is efficacious in stopping a cough” Synonyms: effective , effectual producing or capable of producing an intended result or having a ...

  6. Synonyms for EFFICACIOUS: efficient, effective, potent, productive, effectual, adequate, fruitful, operative; Antonyms of EFFICACIOUS: ineffective, useless ...

  7. Capable of or successful in producing an intended result; effective as a means, remedy, etc.... Click for English pronunciations, examples sentences, video.

  8. Definition of efficacious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  9. Efficacious definition: Producing or capable of producing a desired effect. Since many of these thermal springs possess great medicinal value, Japan may become one of the worlds favorite health-resorts, There are more than a hundred spas, some hot, some cold, which, being easily accessible and highly efficacious, are largely visited by the Japanese.

  10. efficacious, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

  11. Jan 7, 2024 · Effective is a broad term used to describe something that achieves its goals or intended results, regardless of the context. Efficacious, however, is often used in more specialized contexts, like medicine or science, to denote the ability to produce a desired or intended result.

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