名詞 astringent:

1. a drug that causes contraction of body tissues and canals
   同義詞：astringent drug, styptic

形容詞 astringent:

1. sour or bitter in taste
   同義詞：acerb, acerbic
2. tending to draw together or constrict soft organic tissue

as.trin.gent

adj.（形容詞）
Medicine Tending to draw together or constrict tissues; styptic.
【醫(yī)學(xué)】 收縮性的：有助于聚集或收縮有機(jī)組織的；收縮性的
Sharp and penetrating; pungent or severe:
嚴(yán)峻的：尖銳的，有刺透性的；嚴(yán)厲的或激烈的：
例句：
astringent remarks.
嚴(yán)厲的語(yǔ)言

n.（名詞）
A substance or preparation, such as alum, that draws together or constricts body tissues and is effective in stopping the flow of blood or other secretions.
止血?jiǎng)阂环N物質(zhì)或藥劑，如明礬，可以聚斂或收縮機(jī)體組織，從而有效地阻止血液或身體其它分泌物流出體外

來(lái)源：
Latin astringôns astringent- [present participle of] astringere [to bind fast]
拉丁語(yǔ) astringôns astringent- [] astringere的現(xiàn)在分詞 [迅速凝固]
ad- [ad-]
ad- [前綴，表示.向…運(yùn)動(dòng).，.臨近.]
stringere [to bind] * see streig-
stringere [凝固，包扎] *參見 streig-

【引伸】
astrin.gency
n.（名詞）
astrin.gently
adv.（副詞）