chondrin
  軟骨膠; 軟骨素
  chon·drin /ˈkɑndrən/ 名詞
  軟骨膠
  Chon·drin n.  Physiol. Chem. A colorless, amorphous, nitrogenous substance, tasteless and odorless, formed from cartilaginous tissue by long-continued action of boiling water. It is similar to gelatin, and is a large ingredient of commercial gelatin.  See also chondroitin sulfate.
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  chondrin
       n : a substance that resembles gelatin and is obtained by
           boiling cartilage in water