"astringent" in the noun sense
1. astringent, astringent drug, styptic
a drug that causes contraction of body tissues and canals
"astringent" in the adjective sense
1. acerb, acerbic, astringent
sour or bitter in taste
2. astringent
tending to draw together or constrict soft organic tissue
"astringent cosmetic lotions"
Source: WordNet® (An amazing lexical database of English)
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