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 (kwĭ-nōn′, kwĭn′ōn′)
1. Either of two isomeric unsaturated cyclic compounds having the formula C6H4O2, found widely in plants, especially in a yellow crystalline form, and used in making dyes, tanning hides, and photography.
2. Any of various quinonoid compounds, often yellow to red in color, many of which have biological derivation or importance, such as coenzyme-Q.


(kwɪˈnəʊn; ˈkwɪnəʊn)
(Elements & Compounds) another name for benzoquinone


(kwɪˈnoʊn, ˈkwɪn oʊn)

1. a yellow, crystalline, cyclic compound, C6H4O2, used chiefly in photography and in tanning leather.
2. any of a class of compounds of this type.
[1850–55; quin(ic acid) a compound found in cinchona bark and the leaves of other plants(quinic < Sp quin(a) quinine + -ic) + -one]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quinone - any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
coenzyme Q, ubiquinone - any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration
References in classic literature ?
I shall be told that the jousts of Suero de Quinones, him of the 'Paso,' and the emprise of Mosen Luis de Falces against the Castilian knight, Don Gonzalo de Guzman, were mere mockeries; as well as many other achievements of Christian knights of these and foreign realms, which are so authentic and true, that, I repeat, he who denies them must be totally wanting in reason and good sense.
With Avegail Rombaon and national team coach Eboy Quinones as spearheads, Team Bianchi dominated the fourth Bike the Dike Mountain Bike challenge in Mangaldan, Pangasinan through the support of Mega Ideal Enterprises that provided the team with the Methanol SX, Methanol CV and Methanol 29 FS (full suspension) mountain bikes.
Also arrested was Mars Guiwo Quinones, 49, a letter carrier of the Philippine Postal Corp.
Quinones is a freelance journalist and former Los Angeles Times reporter.
Speaking of the incident, Russ Gibson, Osceola County Sheriff&nbsp;said: "Even after accused hit team Alexis Ramos and Glorianmarie Quinones Montes realized they had the wrong woman, they still continued with their plan of murder," the&nbsp;(https://nypost.
Maria Quinones started working for AT&T 18 years ago, while attending school full time, and said she altered course to stay because it was an up-and-coming company that had a lot to offer its employees.
Coldwell Banker Garden State is owned by David Quinones.
Although Goffner copped the C title, he bowed in the B semifinals to Luis Quinones in a competitive 21-15, 21-17 contest.
SPEX) Managing Director Sebastian Quinones noted that "there will be a commercial discussion"; but the timeline on the negotiations must be signaled by government via the Department of Energy.
Michael Aziz, a professor of materials and energy technologies at Harvard University, who led the work, says the quinones will cut the cost of energy storage materials down to just $27 per kilowatt-hour.
The battery uses quinones, common chemicals in many life-forms that help hold energy for later use, Harvard researchers report in the Jan.