英 [ˈefɪkəsi] 美 [ˈefɪkəsi]
n. <正式>功效，效力
复数efficacies
efficacy /ˈɛfɪkəsɪ/ TEM8
不可数名词 If you talk about the efficacy of something, you are talking about its effectiveness and its ability to do what it is supposed to. 功效
Recent medical studies confirm the efficacy of a healthier lifestyle.
近来的医学研究证实了更健康的生活方式的功效。
capacity or power to produce a desired effect
concern about the safety and efficacy of the vaccine
同义词： efficaciousness
本指南中，术语疗效（efficacy）指的是充分的并且有良好对照的临床试验中的发现或开展这种试验的目的，术语有效性（effectiveness）指的是根据这些疗效数据和其他...
...内的多维的疗效评价体系，提供中医药对疾病和亚健康状态生存质量影响的证据，以期反映中医药防治疾病所具有的真正效能(Efficacy)是十分有意义的工作。
最大效力（Efficacy）：药物的最大疗效 2. 效价（Potency）：达到相同效力时，剂量越小的效价越高 3.
efficacious 有效的；灵验的
efficaciously 有效地；灵验地
efficiency 效率；效能；功效
功效，效力
Recent medical studies confirm the efficacy of a healthier lifestyle.
近来的医学研究证实了更健康的生活方式的功效。
Ciliv is selling the efficacy of so-called build-operate-transfer (BOT) operations.
瑟利夫正在大力宣扬被称之为“建设—经营—移交”（BOT) 模式的效力。
Firms are now studying how genes interact, looking for correlations that might be used to determine the causes of disease or predict a drug's efficacy.
公司正在研究基因是如何相互作用的，以此寻找可用来判断疾病的起因或者预测药物功效的基因相关性。
"We really need to get after this weed resistance problem right away before we lose the efficacy of that technology."
VOA : standard.2010.04.15
If you are trying to model, I don't know, the efficacy of a particular drug, these are the baby-steps that you will go through.
是否你正在试图创建模型，我不知道，一种特殊药品的功效，你们要经过一些入门步骤。
固态化学导论课程节选 : 麻省理工公开课
Which of us would want to punish the purest efficacy of a living intellect?
谁愿意批评,最纯洁的活跃的思想的成果？
弥尔顿课程节选 : 耶鲁公开课
"They do not represent official positions or policy, and they do not,in my view, fundamentally call into question the efficacy of our current strategy in Afghanistan and its prospects for success."
VOA : standard.2010.07.30
He disputed the efficacy of some of the drugs, which is in a way just as bad or even worse - because it prevented access to drugs, which could have been affordable at least to South Africa, In the end, the words of Nelson Mandela became a battle cry for many at the Conference.
VOA : standard.2010.05.17
Vitamin manufacturers are to invited to submit evidence of the efficacy and safety of their high-dose products.
Practices like meditation, exercise, and cognitive therapy have shown comparable short-term efficacy to medication.
"We're very confident in the safety and efficacy of Arcoxia, " says Merck spokeswoman Christine Fanelle.