ca·thar·tic /kəˈθɑrtɪk/
  瀉藥,通便藥(a.)通便的,導瀉的
  ca·thar·tic /kəˈθɑrtɪk/ 形容詞
  導瀉的,瀉藥
  Ca·thar·tic Ca·thar·ic·al a.
  1. Med. Cleansing the bowels; promoting evacuations by stool; purgative.
  2. Of or pertaining to the purgative principle of senna, as cathartic acid.
  ◄ ►
  Ca·thar·tic, n.  Med. A medicine that promotes alvine discharges; a purge; a purgative of moderate activity.
  Note: ☞ The cathartics are more energetic and certain in action that the laxatives, which simply increase the tendency to alvine evacuation; and less powerful and irritaint that the drastic purges, which cause profuse, repeated, and watery evacuations.
  -- Ca*thar*tic*al*ly, adv. -- Ca*thar*tic*al*ness, n.
  ◄ ►
  cathartic
       adj 1: emotionally purging [syn: psychotherapeutic]
       2: emotionally purging (of e.g. art) [syn: releasing]
       3: strongly laxative [syn: evacuant, purgative]
       n : a purging medicine; stimulates evacuation of the bowels
           [syn: purgative, physic, aperient]