anthraquinone
noun
an·thra·qui·none ˌan(t)-thrə-kwi-ˈnōn 
-ˈkwi-ˌnōn
: a yellow crystalline ketone C14H8O2 often derived from anthracene and used especially in the manufacture of dyes
Example Sentences
Recent Examples on the Web For one, carminic acid has a complicated structure: a central three-ring structure called anthraquinone to which a glucose molecule and a few other chemical groups are attached. 
Brittany J. Miller, Smithsonian Magazine, 29 Mar. 2022 Baker added that a non-lethal corn treatment, seeds treated with anthraquinone, an organic compound sold under the brand name Avipel, affordably and effectively prevents depredation by making the corn unpalatable to the cranes. Keith Matheny, Detroit Free Press, 12 Dec. 2017
Brittany J. Miller, Smithsonian Magazine, 29 Mar. 2022 Baker added that a non-lethal corn treatment, seeds treated with anthraquinone, an organic compound sold under the brand name Avipel, affordably and effectively prevents depredation by making the corn unpalatable to the cranes. Keith Matheny, Detroit Free Press, 12 Dec. 2017 Word History
Etymology
anthra- (in anthracene) + quinone, after German Anthrachinon
First Known Use
1869, in the meaning defined above
Medical Definition
anthraquinone
noun
an·thra·qui·none ˌan(t)-thrə-kwin-ˈōn -ˈkwin-ˌōn
-ˈkwin-ˌōn : a yellow crystalline ketone C14H8O2 often derived from anthracene and used especially in the manufacture of dyes