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- Dictionaryefficacious/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"
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Efficacious means able to produce the intended result or working well under scientific testing conditions. Learn more about this formal adjective, its synonyms, antonyms, and usage in sentences.
Efficacious means having the power to produce a desired effect. Learn its synonyms, etymology, examples, and usage in medical writing and other contexts.
When you really want to do something right, really nail it, really get at what you were going for — you're trying to be efficacious, or produce the effect you intended. The word efficacious is made up of the Latin efficere meaning "accomplish" and the suffix -ious meaning "full of."
Efficacious means effective, capable of producing the desired result or effect. Learn how to use this formal adjective in sentences, and find synonyms and related words in Collins Dictionary.
Learn the formal adjective efficacious, which means having the power to produce a desired result or effect. See examples, pronunciation, and related words in the Britannica Dictionary.
Efficacious means producing the result that was wanted or intended. Learn how to use this formal adjective with synonyms, pronunciation, and example sentences from Oxford University Press.
Efficacious means producing or capable of producing a desired effect. Find the origin, usage, and examples of this word, as well as related words and translations in different languages.
Efficacious means producing the desired effect or result. It comes from Latin efficāci-, meaning to accomplish or achieve. See examples, pronunciation and related words in OED.
Efficacious means effective or successful. Learn how to use this formal adjective in sentences, and find synonyms, pronunciation, and translations in different languages.
Efficacious means working in the way you intended. Learn more about this formal adjective, its synonyms, and how to use it in sentences from the corpus.
