n. Any derivative of this parent compound, mostly natural pigments or synthetic dyes.
the GNU version of the Collaborative International Dictionary of English
n. A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow needles. It is obtained by oxidation of anthracene.
The Century Dictionary and Cyclopedia
n. A product (C14H8O2) obtained from anthracene by the action of oxidizing agents. From it alizarin is prepared.
Word Usage
"In addition, it is rich in the compound anthraquinone, which may reduce fat absorption in the intestines and help rhubarb function as a mild laxative."