trihydroxymethylanthraquinone

== English == === Etymology === From trihydroxy +‎ methyl +‎ anthraquinone. === Noun === trihydroxymethylanthraquinone (plural trihydroxymethylanthraquinones) (organic chemistry) Any trihydroxy, methyl derivative of anthraquinone, but especially 6-methyl-1,3,8-trihydroxyanthraquinone (emodin)