a yellow crystalline ketone, CH(CO)CH, produced from anthracene by oxidation or the reaction of phthalic anhydride with benzene: it is used in the manufacture of certain dyes and dye intermediates
See anthraquinone in American Heritage Dictionary 4
(ănˌthrə-kwĭ-nōnˈ, -kwĭnˈōnˌ)
noun
A yellow crystalline powder, C14H8O2, that is insoluble in water and used chiefly in the manufacture of dyes.