EFFICACY
Dictionary entry overview: What does efficacy mean? • EFFICACY (noun)
The noun EFFICACY has 1 sense:
1. capacity or power to produce a desired effect
Familiarity information: EFFICACY used as a noun is very rare.
Dictionary entry details
• EFFICACY (noun)
Meaning:
Capacity or power to produce a desired effect
Classified under:
Nouns denoting attributes of people and objects
Synonyms:
efficaciousness; efficacy
Context example:
concern about the safety and efficacy of the vaccine
Hypernyms ("efficacy" is a kind of...):
effectiveness; effectivity; effectuality; effectualness (power to be effective; the quality of being able to bring about an effect)
Attribute:
efficacious (marked by qualities giving the power to produce an intended effect)
inefficacious (lacking the power to produce a desired effect)
Antonym:
inefficacy (a lack of efficacy)
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