ଅର୍ଥ : Capacity or power to produce a desired effect.
ଉଦାହରଣ :
Concern about the safety and efficacy of the vaccine.
ସମକକ୍ଷ : efficaciousness
Efficacy ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Efficacy ka matlab kya hota hai?