1.  astringency(n = noun.cognition) astringence - a sharp astringent taste; the taste experience when a substance causes the mouth to pucker;
is a kind of gustatory perception, gustatory sensation, taste, taste perception, taste sensation
Derived form adjective astringent₁

2.  astringency(n = noun.attribute) stypsis - the ability to contract or draw together soft body tissues to check blood flow or restrict secretion of fluids;
is a kind of contractility
Derived form adjective astringent₂

   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. [1913 Webster]

N  contraction, reduction, diminution, decrease of size, defalcation, decrement, lessening, shrinking, compaction, tabes, collapse, emaciation, attenuation, tabefaction, consumption, marasmus, atrophy, systole, neck, hourglass, condensation, compression, compactness, compendium, squeezing, strangulation, corrugation, astringency, astringents, sclerotics, contractility, compressibility, coarctation, inferiority in size, contracting, astringent, shrunk, contracted, strangulated, tabid, wizened, stunted, waning, neap, compact, unexpanded &c (expand), contractile, compressible, smaller &c (small).

N  acridity, astringency, bite, tear gas, smoke, acrid fumes, acrid, biting, astringent, sharp, harsh, bitter, (5) Sound (i) SOUND IN GENERAL.