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Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 1,2,7-trihydroxyanthraquinone

from The Century Dictionary and Cyclopedia

  • n. A coal-tar color (C14H5O2(OH)3) used in dyeing, closely allied to alizarin, formed by heating beta-anthraquinon disulphonic acid with caustic soda and potassium chlorate.

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