alizarin

n. red pigment used in the synthesis of dyes

Alizarin, or 1,2-dihydroxyanthraquinone or mordant red, is the red dye originally derived from the root of the madder plant. In 1869, it became the first natural pigment to be duplicated synthetically.The word alizarin ultimately derives from the Arabic al-usara, juice.
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Noun
1. an orange-red crystalline compound used in making red pigments and in dyeing
(synonym) alizarine
(hypernym) pigment
(hyponym) alizarin carmine, alizarin crimson, alizarin red

n. alizarin, red pigment used in the synthesis of dyes, alizarine

n. alizarin, red pigment used in the synthesis of dyes