名詞 catechin:

1. a tannic acid that is extracted from black catechu as a white crystalline substance

cat.e.chin

n.（名詞）
A crystalline substance, C5H 4O ', derived from catechu and used in tanning and dyeing. Also called catechol
兒茶酸：一種晶體物質(zhì)，C5H 4O '，來源于兒茶，用于制革和染色 也作 catechol

來源：
catech(u)
catech(u)
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