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efficacy

noun
/ˈɛf.ɪ.kə.si/CA/ˈef.ɪ.kə.si/

Etymology

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

  1. derived from efficācia
  2. derived from efficace

Definitions

  1. The ability to produce a desired effect under ideal testing conditions.

    • […]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.

  2. A degree of ability to produce a desired effect

    A degree of ability to produce a desired effect; effectiveness.

    • Toothbrush with improved efficacy

The neighborhood

Derived

bioefficacy, coefficacy, inefficacy, nonefficacy, self-efficacy, seroefficacy

Vish — recursive loop

A definitional loop anchored at efficacy. Each word in the ring is defined by the next; follow the chain far enough and it folds back on itself. Scroll to it and watch.

01efficacy02ideal03existing04existence05philosophy06empiricism07experimentation08experiment

A definitional loop anchored at efficacy. Each word in the ring appears in the definition of the next; follow the chain far enough and it folds back on itself.

8 hops · closes at efficacy

curated · pre-corpus. live cycle detection across the full graph is the next major milestone.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA