efficacy
🇺🇸
/ˈefɪkəsi/
🇬🇧
/ˈefɪkəsi/
how well something works in producing a desired effect
Researchers are studying the efficacy of the new drug to ensure it is both safe and effective.
연구원들은 새로운 약의 효능을 연구하여 안전하고 효과적임을 확신하고 있습니다.