alizarin

American  

[uh-liz-er-in] / əˈlɪz ər ɪn /

Also alizarine

noun

Chemistry.

1. a solid appearing reddish-orange as crystals and brownish-yellow as powder, C 14 H 8 O 4 , one of the earliest known dyes, formerly obtained in its natural state from madder and now derived from anthraquinone: used chiefly in the synthesis of other dyes.

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alizarin British  

/ əˈlɪzərɪn /

noun

1. a brownish-yellow powder or orange-red crystalline solid used as a dye and in the manufacture of other dyes. Formula: C 6 H 4 (CO) 2 C 6 H 2 (OH) 2

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Etymology

Origin of alizarin

1825–35; < French alizarine, equivalent to alizar ( i ) (< Spanish < Arabic al the + ʿaṣārah juice) + -ine -ine ¹