astringency

n.

收敛性，严酷；

1. Some astringency is inherent in tea, but green tea is more astringent than black.
   一定程度的收敛性是茶中固有的，而绿茶比红茶为涩。
2. The algorithm shows that this encoding method can effectively prove the astringency of the algorithm, and is easier to obtain the optimal solution.
   算例表明，这种编码方式可以有效提高算法收敛性，更容易获得最优解。

Red wine astringency: a review
Astringency and bitterness of selected phenolics in wine
Polyphenols, astringency and proline-rich proteins
Natural astringency in foodstuffs--a molecular interpretation.
Bitterness and astringency of flavan‐3‐ol monomers, dimers and trimers
The phenolics of ciders: Bitterness and astringency
Molecular model for astringency produced by polyphenol/protein interactions.
Psychophysical evidence that oral astringency is a tactile sensation
Haemanalysis of tannins: The concept of relative astringency
Two new flavonoids and other constituents in licorice root: their relative astringency and radical scavenging effects.