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efficacious

One entry found for efficacious.
Main Entry: ef·fi·ca·cious
Pronunciation: "e-f&-'kA-sh&s
Function: adjective
Etymology: Latin efficac-, efficax, from efficere
: having the power to produce a desired effect <an efficacious remedy>
synonym see EFFECTIVE
- ef·fi·ca·cious·ly adverb
- ef·fi·ca·cious·ness noun