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ef·fi·ca·cious

Pronounced:

/ˌɛfəˈkeɪʃəs/Listen to audio

Function:

adjective

Meaning:

[more ef*fi*ca*cious; most ef*fi*ca*cious] formal : having the power to produce a desired result or effect : effective ▪ an efficacious remedy
—ef·fi·ca·cious·ly adverb
—ef·fi·ca·cious·ness noun [noncount]
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