NOUN | attribute | efficacy, efficaciousness | capacity or power to produce a desired effect |
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Sounds | eh'fihkae.siy | |
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Rhymes | absorbency ... Yangtze: 255 rhymes with siy... |
Meaning | Capacity or power to produce a desired effect. | |
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Example | "concern about the safety and efficacy of the vaccine" | |
Synonym | efficaciousness | |
Attributes | efficacious | marked by qualities giving the power to produce an intended effect |
inefficacious | lacking the power to produce a desired effect | |
Broader | effectiveness, effectivity, effectualness, effectuality | Power to be effective |
Opposite | inefficacy, inefficaciousness | A lack of efficacy |
Spanish | diligencia, efectividad, eficacia | |
Catalan | eficàcia, eficiència | |
Adjectives | efficacious | marked by qualities giving the power to produce an intended effect |
efficacious | producing or capable of producing an intended result or having a striking effect |
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