alizarin noun. [ǝ'lɪz(ǝ)rɪn] Also alizarine. M19.
[French alizarine from alizari madder, perh. from colloq. Arab. al-iāra the juice or sap pressed out: see AL-², -IN¹.]
Chemistry. The red colouring matter of madder root; 1,2-dihydroxyanthraquinone, C₁₄H₈O₄.

Comb.:
alizarin red, alizarin yellow: (the colours of) synthetic dyestuffs derived from or resembling alizarin.

[TahlilGaran] English Dictionary ▲