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Definition of: alizarin
(ə·liz′ə·rin) noun
A basic orange-red crystalline coloring compound, C14H8O4; used to dye cotton, wool, and silks various shades of red: formerly prepared from madder, now manufactured from anthraquinone.
—adjective Designating any organic compound derived from anthraquinone: alizarin blue, alizarin crimson, alizarin green. Also a·liz·a·rine (ə·liz′ə·rin, -rēn). [<F alizerine <alizari madder]
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