san·to·nin /ˈsæntṇən, sænˈtɑnən/
  山道寧[蛔蟲驅除劑]
  san·to·nin /ˈsæntṇən, sænˈtɑnən/ 名詞
  San·to·nin n.  Chem. A white crystalline substance having a bitter taste, extracted from the buds of levant wormseed and used as an anthelmintic. It occassions a peculiar temporary color blindness, causing objects to appear as if seen through a yellow glass.
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