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efficacious

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efficacious

Main Entry:: ef·fi·ca·cious
Pronunciation:: \ˌe-fə-ˈkā-shəs\
Function:: adjective
Etymology:: Latin efficac-, efficax, from efficere
Date:: 1528

: having the power to produce a desired effect <an efficacious remedy>

synonyms see effective

— ef·fi·ca·cious·ly adverb

— ef·fi·ca·cious·ness noun

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