Any of several Mexican plants of the genus Dioscorea having a large,inedible root that yields an extract used as a raw material for synthetic steroid hormones.

 
  • 苦皮,薯蓣一种薯蓣属墨西哥植物,有硕大而不可食的根部,可以产出一种抽提物,用作合成类固醇激素的原料。
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