Liberal Dictionary English Dictionary
quinone [kwi-nohn, kwin-ohn] ExamplesWord Origin noun Chemistry.
- a yellow, crystalline, cyclic unsaturated diketone, C6H4O2, formed by oxidizing aniline or hydroquinone: used chiefly in photography and in tanning leather.
- any of a class of compounds of this type.
Also chinone. Origin of quinone First recorded in 1850–55; quin(ic acid) + -one Examples from the Web for quinone Historical Examples of quinone
The quinone with which we are at present concerned is anthraquinone.
Raphael Meldola
The various pathological conditions mentioned before may be ascribed to irritation caused by quinone di-imine.
Principles and Practice of Fur Dressing and Fur Dyeing
William E. Austin
The so-called chrysophanic acid found in Xanthoria (Physcia) parietina is not an acid but a quinone and is better termed physcion.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 5
Various
Thus there is quinone itself, or benzoquinone, which is benzene with two atoms of oxygen replacing two atoms of hydrogen.
Raphael Meldola
Phenanthrene forms a quinone which has been utilized as a source of colouring-matters, but these are comparatively unimportant.
Raphael Meldola
British Dictionary definitions for quinone quinone noun
- another name for benzoquinone
quinone in Medicine quinone [kwĭ-nōn′, kwĭn′ōn′] n.
- Any of a class of aromatic compounds found widely in plants, especially the crystalline form used in making dyes.
quinone in Science quinone [kwĭ-nōn′, kwĭn′ōn′]
- Any of a class of organic compounds that occur naturally as pigments in bacteria, plants, and certain fungi. Quinones have two carbonyl groups (CO) in an unsaturated six-member carbon ring.
- A yellow crystalline compound belonging to this class, used in photography, to make dyes and to tan hides. Chemical formula: C6H4O2.