pur.pu.rin
n.（名词）A reddish crystalline compound, C4H 5O 2(OH) 3, that is isolated from madder root for use as a biological stain and commercial dye. 羟基茜草素，红紫素：一种从茜草属植物中提取出来用作生物染色剂和商业染料的淡红晶状化合物C4H 5O 2(OH) 3
来源：Latin purpura [purple] * see purple 拉丁语 purpura [紫色的] *参见 purple-in -in
