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BNC: 21836 COCA: 19391

efficacious

1 ENTRIES FOUND:
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 行之有效的;灵验的

— efficaciously

adverb

— efficaciousness

noun [noncount]

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