That which acts as an astringent, causing contraction of soft tissue to restrict the flow of blood.(noun)
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Use "astringency" in a sentence
"It is then good tasted, and somewhat nutritive, and it loses, by the process, the whole of the astringency which is so disagreeable in the recent fruit."
"There was a fair amount of astringency in all of the wines."
"Sencha Tasting notes: Well balanced and bright, with a woodsy astringency."