tannin

美 [ˈtænɪn]
英 ['tænɪn]
  • n.单宁;单宁酸;鞣质
  • 网络丹宁;丹宁酸;鞣酸
复数:tannins  
tannin
n.
1.
单宁;单宁酸;鞣质a yellowish or brownish substance found in the bark of some trees and the fruit of many plants, used especially in making leather, ink and wine

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