-kwēˈnōn, -ˈkwiˌnōn noun
( -s )
Etymology: probably from French, from anthr- + quinone
: a yellow crystalline diketone C 6 H 4 (CO) 2 C 6 H 4 obtained by oxidation of anthracene or by reaction of phthalic anhydride with benzene and used especially in the manufacture of an important class of dyes