Last Updated
：2025/11/19
efficacious
IPA(Pronunciation)
Sense（1）
（ comparative ）
（ superlative ）
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(formal) Effective; possessing efficacy.
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efficacious
The committee concluded that the new policy was more efficacious than previous measures in reducing emissions.
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The committee concluded that the new policy was more efficacious than previous measures in reducing emissions.
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