noun Etymology: International Scientific Vocabulary quinine + -one Date: 1853 either of two isomeric cyclic crystalline compounds C 6 H 4 O 2 that are derivatives of benzene, any of various usually yellow, orange, or red quinonoid compounds including several that are biologically important as coenzymes, hydrogen acceptors, or vitamins
QUINONE
Meaning of QUINONE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012