/ Dictionary / Index A anthraquinone: Meaning and Definition of Find definitions for: an•thra•qui•none Pronunciation: (an"thru-kwu-nōn', -kwē'nōn, -kwin'ōn), [key] — n. Chem. a yellow, water-insoluble, crystalline powder, CHO, usually derived from anthracene or phthalic anhydride: used chiefly in the manufacture of anthraquinone dyes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anthranilic acid anthraquinone dye Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language