alizarin
/əˈlɪzərɪn/noun
mass noun
1- Chemistry a red pigment present in madder root, used in dyeing【化】茜素。
1.1
- Alternative name: 1,2-DIHYDROXYANTHRAQUINONE; chem. formula: C14H8O4.又名： 1,2-双羟蒽醌; 化学分子式： C14H8O4.
1.2
- as modifier denoting dyes derived from or similar to this pigment（类）茜素颜料：
alizarin crimson.
茜素红。
词源
mid 19th cent.: from French alizarine, from alizari 'madder'， from Arabic al'iṣra 'pressed juice'， from 'aṣara ' to press fruit'.