efficacy
BrE /ˈef.ɪ.kə.si/ AmE /ˈɛf.ɪ.kə.si/
noun en → es
the ability of something to produce the desired effect or result
eficacia, efectividad
- the efficacy of sth
Collocations efficacy of a drug · efficacy of a treatment
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The efficacy of the new vaccine is still being tested.
La eficacia de la nueva vacuna aún está siendo probada.
the success with which something works or achieves its purpose
efectividad, éxito
- efficacy of sth
Collocations efficacy in solving problems · efficacy in achieving goals
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The efficacy of the new policy remains to be seen.
La efectividad de la nueva política aún no se ha demostrado.