marked by qualities giving the power to produce an intended effect;
"written propaganda is less efficacious than the habits and prejudices...of the readers"
"the medicine is efficacious in stopping a cough"
producing or capable of producing an intended result or having a striking effect;
"an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"
"effective teaching methods"
"effective steps toward peace"
"made an effective entrance"
"his complaint proved to be effectual in bringing action"
"an efficacious law"
- Vaccination for smallpox is efficacious.
- This medicine is efficacious against heart disease.
- The medicine is efficacious in stopping a cough.
At present there is no convincing evidence that psychoanalytic treatment as such is efficacious.出自： P. Medawar
- effective 有效的
- effectual 有效果的
- efficient 效率高的
- practical 明智的
- energetic 精力旺盛的
- fruitful 多产的
- successful 成功的
- useful 有用的
- worthwhile 值得(做)的
- valuable 贵重的
- inefficacious 无效力的