efficaciousness   (TTS Sound)

The efficaciousness has 1 Senses.

• efficacy, efficaciousness
• 効目, 実効, 効, 利き目, 効き目, 効果, 利き, 効力, 効き, 功能, 効能, 効験
• capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"
• 望ましい効果を出す能力または力