as·trin·gen·cy /əˈstrɪnʤən(t)si/
  收斂性,嚴酷
  as·trin·gen·cy /-ʤənsɪ/ 名詞
  澀味,收斂性
  As·trin·gen·cy n. The quality of being astringent; the power of contracting the parts of the body; that quality in medicines or other substances which causes contraction of the organic textures; as, the astringency of tannin.
  ◄ ►
  astringency
       n 1: a sharp astringent taste; the taste experience when a
            substance causes the mouth to pucker [syn: astringence]
       2: the ability to contract or draw together soft body tissues
          to check blood flow or restrict secretion of fluids [syn:
          stypsis]