efficacy

名词 n.
中文释义
英 /ˈɛf.ɪ.kə.si/    美 /ˈɛf.ɪ.kə.si/|/ˈef.ɪ.kə.si/|[ˈef.ɪ.kə.sɪi]

英文释义

名词 n.
  1. The ability to produce a desired effect under ideal testing conditions. uncountable,usually
    — […]and this hath even made me ſuſpect the efficacy of reliques, to examine the bones, queſtion the habits and appurtenances of Saints, and even of Chriſt himſelf.
    The Religion of a Doctor
  2. A degree of ability to produce a desired effect; effectiveness. uncountable,usually
    — Toothbrush with improved efficacy

词形变化

efficacies plural

词汇关系

近义词
efficacity
衍生词
bioefficacy coefficacy inefficacy nonefficacy self-efficacy seroefficacy
相关词
effect effective effectiveness effectivity effector effectual effectuate efficacious efficaciously efficacity efficiency efficient

词源

From Old French efficace, from Late Latin efficācia (“efficacy”), from efficāx (“efficacious”); see efficacious.
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