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1. Dictionary

   efficacious

   /ˌɛfɪˈkeɪʃəs/

   adjective

   • 1. (of something inanimate or abstract) successful in producing a desired or intended result; effective: formal "this treatment was efficacious in some cases"

   Word Origin early 16th century: from Latin efficax, efficac- (from efficere ‘accomplish’: see effect) + -ious.

   Derivatives

   • 1. efficaciously adverb
   • 2. efficaciousness noun

   Scrabble Points: 21

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   More definitions, origin and scrabble points

2. www.merriam-webster.com › dictionary › efficaciousEfficacious Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › efficacious

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   The meaning of EFFICACIOUS is having the power to produce a desired effect. How to use efficacious in a sentence. Did you know? Synonym Discussion of Efficacious.

3. dictionary.cambridge.org › dictionary › englishEFFICACIOUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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

4. www.vocabulary.com › dictionary › efficaciousEfficacious - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › efficacious

   Something that's efficacious is full of accomplishment. An efficacious medicine is one that cures you of the ailment you had. An efficacious recipe is one that comes out the way you intended it to taste.

5. www.dictionary.com › browse › efficaciousEFFICACIOUS Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › efficacious

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   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.

6. www.collinsdictionary.com › dictionary › englishEFFICACIOUS definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   producing or capable of producing the desired effect; having the intended result; effective. an efficacious drug. SIMILAR WORDS: efˈfective. Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved. Derived forms. efficaciously (ˌeffiˈcaciously) adverb.

7. dictionary.cambridge.org › us › dictionaryEFFICACIOUS | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

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

8. www.collinsdictionary.com › dictionary › english-wordAll content related to 'efficacious' - Collins Online Dictionary

   www.collinsdictionary.com › dictionary › english-word

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   All you need to know about "EFFICACIOUS" in one place: definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.

9. www.oxfordlearnersdictionaries.com › us › definitionefficacious adjective - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › us › definition

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

10. www.yourdictionary.com › efficaciousEfficacious Definition & Meaning | YourDictionary

    www.yourdictionary.com › efficacious

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    Producing or capable of producing the desired effect; having the intended result; effective. An efficacious drug. Webster's New World. Similar definitions. Effective. Wiktionary. Synonyms: effectual. effective. productive. efficient. potent. virtuous. vigorous. useful. prevalent. powerful. valid. forcible. capable. active. Antonyms: ineffective.

11. www.oed.com › dictionary › efficacious_adjefficacious, adj. meanings, etymology and more - Oxford English ...

    www.oed.com › dictionary › efficacious_adj

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    There is one meaning in OED's entry for the adjective efficacious. See ‘Meaning & use’ for definition, usage, and quotation evidence.