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Definitions and Synonyms of efficacy | Another word for efficacy | What is efficacy?

Definition 1: capacity or power to produce a desired effect - [noun denoting attribute]

Samples where efficacy or its synonyms are used according to this definition

  • concern about the safety and efficacy of the vaccine

Synonyms for efficacy in the sense of this definition

(efficacy is a kind of ...) power to be effective; the quality of being able to bring about an effect

(... are attributes of efficacy) marked by qualities giving the power to produce an intended effect

"written propaganda is less efficacious than the habits and prejudices...of the readers" "the medicine is efficacious in stopping a cough"

(... are attributes of efficacy) lacking the power to produce a desired effect

"laws that are inefficacious in stopping crime"

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