sen·e·ga /ˈsɛnɪgə/
  美遠志,美遠志根
  sen·e·ga /ˈsɛnɪgə/ 名詞
  美遠志(根)
  Sen·e·ga n. Med. Seneca root.
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  senega
       n 1: dried root of two plants of the genus Polygala containing an
            irritating saponin
       2: perennial bushy herb of Central and southern United States
          having white flowers with green centers and often purple
          crest; similar to Seneca snakeroot [syn: Polygala alba]