a. [ L. eficax, -acis, fr. efficere. See Effect, n. ] Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.
[dāi phon] (v, exp) EN: be efficacious ; be successful ; be effective ; workFR: agir ; être efficace ; opérer ; produire des résultats
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- Well, I can't speak to its efficacy but as long as it doesn't interfere with our treatment anything that helps my patient have a better outlook a better comfort, is fine by me.
The Horsemen left egg on the face of what they call the alphabet agencies, calling into question the efficacy of the FBI's task force as well as the man in charge of the investigation,
ขี่ม้า ไข่ซ้ายบนใบหน้าของสิ่งที่พวกเขาเรียกว่า หน่วยงานของตัวอักษร โทรเข้ามาถามNow You See Me (2013)
Someone profiling our profilers undermines the efficacy of everything you do, and I'm going to be frank with you-- both the Director and the Attorney General want to take you off this case, and I can't say I totally disagree.
(adj) marked by qualities giving the power to produce an intended effect; -Aldous Huxley, Ant. inefficacious, Example:written propaganda is less efficacious than the habits and prejudices...of the readers; the medicine is efficacious in stopping a cough
(adv) in an effective manner, Syn. effectively, Ant. ineffectively, inefficaciously, Example:these are real problems that can be dealt with most effectively by rational discussion