English Explanatory Dictionary

efficacy

English dictionary entry

Meanings

noun
  1. The ability to produce a desired effect under ideal testing conditions.
  2. A degree of ability to produce a desired effect; effectiveness.

Pronunciation

/ˈɛf.ɪ.kə.si/ LL-Q1860 (eng)-Vealhurl-efficacy.wav /ˈef.ɪ.kə.si/ [ˈef.ɪ.kə.sɪi] /ˈef.ə.kə.si/

Word forms

efficacy efficacies

Etymology

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

Synonyms

efficacity

Related words

effect effective effectiveness effectivity effector effectual effectuate efficacious efficaciously efficacity efficiency efficient

Derived words

bioefficacy coefficacy inefficacy nonefficacy self-efficacy seroefficacy

Translations

Azerbaijani: səmərə Azerbaijani: təsirlilik Bulgarian: де́йственост Catalan: eficàcia Chinese Mandarin: 功效 Chinese Mandarin: 效力 Chinese Mandarin: 效能 Chinese Mandarin: 效驗 /效验 Chinese Mandarin: 藥效 /药效 Chinese Mandarin: 療效 /疗效 Czech: efektivnost Czech: účinnost Dutch: doeltreffendheid Esperanto: efikeco Finnish: tehokkuus French: efficience French: efficacité German: Wirksamkeit German: Wirkungsvermögen German: Wirkvermögen German: Wirkungsfähigkeit German: Wirkfähigkeit Ancient Greek: δρᾶσις Hungarian: hatékonyság Indonesian: khasiat Indonesian: kemanjuran Indonesian: keampuhan Indonesian: efikasi Interlingua: efficacia Italian: efficacia Japanese: 有効性 Latin: efficacitas Polish: efektywność Polish: skuteczność Portuguese: eficácia Romanian: eficacitate Russian: эффекти́вность Russian: де́йственность Slovak: efektívnosť Slovene: učinkovitost Spanish: eficacia Swedish: effektivitet Ukrainian: ефекти́вність Ukrainian: діє́вість
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