cathartic
词根词缀：
catharsis n. 净化；宣泄
cathar 纯洁 + sis 表情况 → 让情绪彻底宣泄出来 → 宣泄
cathartic adj. 通便的
cathar 纯洁 + tic 有…性质的，属于…的，具有…的 → 通便使变干净 → 通便的
cathartic n. 泻药
数据来源：新东方英语词汇速记大全
相关例句：
His laughter was cathartic, an animal yelp that brought tears to his eyes.
他哈哈大笑以宣泄情绪，声音如野兽般尖厉，眼泪都笑出来了。
Experimental Treatment of Acute Organophosphorus Pesticide Poisoning with Adsorptive/ Cathartic Compound Prescriptions in Mice
吸附/导泻复方制剂对小鼠有机磷急性中毒的实验治疗
Filming the DVD was obviously a cathartic experience, but why did you decide to release it to the public?
拍摄DVD显然是一次畅通的经历，但是你为什么决定发行它呢？
The crisis should have a cathartic impact on the financial sector but there is a risk that responses to it will overshoot.
危机应该会成为金融行业的一剂“泻药”，但也存在对危机反应过度的风险。
And I hoped it would feel cathartic to make this together, as sort of our final act, he added.
他又说道：我希望这样完成一首歌可以让我们宣泄一些伤感的情绪，算是我们最后的告别。
Methods: A model of cathartic colon was constructed by gastric infusion with rhubarb or phenolphthalein in rats. The transit function of colon was measured by Chinese ink expulsion test;
方法：采用大黄和酚酞建立泻剂结肠大鼠模型，以墨汁推进试验测定其传输功能；