efficacy

English

Etymology

From Latin efficacia (“efficacy”), from efficax (“efficacious”); see efficacious.

Pronunciation

• IPA: /ˈɛf.ɪ.kə.si/, X-SAMPA: /"Ef.I.k@.si/

Noun

efficacy (uncountable)

1. (uncountable) Ability to produce a desired amount of a desired effect.

Synonyms

• efficacity

Related terms

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

Translations

ability to produce effect

• Bulgarian: действеност (bg) (dejstvenost) m
• Catalan: eficàcia f
• Chinese:

  Mandarin: 功效 (cmn), 效力 (cmn)

• Czech: efektivnost (cs) f, účinnost (cs) f
• Dutch: doeltreffendheid
• Finnish: tehokkuus (fi)
• French: efficience (fr) f, efficacité (fr) f
• German: Wirksamkeit (de) f

• Indonesian: khasiat, kemanjuran, keampuhan
• Interlingua: efficacia
• Italian: efficacia (it) f
• Polish: efektywność (pl) f, skuteczność (pl) f
• Portuguese: eficácia (pt) f
• Slovak: efektívnosť (sk) f
• Spanish: eficacia (es) f
• Swedish: effektivitet (sv) f

External links

• efficacy in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• efficacy in The Century Dictionary, The Century Co., New York, 1911