(n.) A crystalline substance, C6H4O2 (called also benzoketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). quinone. Retrieved September 22, 2026, from http://smartdefine.org/quinone/definitions/2052001 |
| Chicago | Webster's. 2011. "quinone" http://smartdefine.org/quinone/definitions/2052001 (accessed September 22, 2026). |
| Harvard | Webster's 2011, quinone, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/quinone/definitions/2052001>. |
| MLA | Webster's. "quinone" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/quinone/definitions/2052001> |