efficacious

形容词 adj.
中文释义
英 /ˌɛf.ɪˈkeɪ.ʃəs/    美 /ˌɛf.əˈkeɪ.ʃəs/|/ˌef.əˈkæɪ.ʃəs/

英文释义

形容词 adj.
  1. Effective; possessing efficacy. formal
    — This medicine is efficacious.

词形变化

more efficacious comparative most efficacious superlative

词源

From Old French efficacieux, from Latin efficāx (“efficacious”) + -ous, from efficere (“to effect, to accomplish”); see effect.
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