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efficacious

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efficacious /ˌɛfəˈkeɪʃəs/ adjective

efficacious

/ˌɛfəˈkeɪʃəs/

adjective

Learner's definition of EFFICACIOUS

[more efficacious; most efficacious] formal

: having the power to produce a desired result or effect : effective

— efficaciously

adverb

noun [noncount]

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