efficacy

English

Etymology

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

Pronunciation

• IPA: /ˈɛf.ɪ.kə.si/, 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) m. Catalan: eficàcia f. Chinese: Mandarin: 功效 (zh), 效力 (zh) 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