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 (flā′vĭn) also fla·vine (-vēn′)
Any of various molecules, including riboflavin, found in plant and animal tissue as coenzymes of flavoproteins. They are variously yellow, red, blue, or colorless depending on the oxidation state.


(ˈfleɪvɪn) or


1. (Elements & Compounds) a heterocyclic ketone that forms the nucleus of certain natural yellow pigments, such as riboflavin. Formula: C10H6N4O2. See flavoprotein
2. (Dyeing) any yellow pigment based on flavin
3. (Elements & Compounds) another name for quercetin
[C19: from Latin flāvus yellow]


(ˈfleɪ vɪn)

any of a group of yellow nitrogen-containing pigments, as riboflavin, that function as coenzymes.
[< German Flavine (1933) < Latin flāv(us) yellow + German -ine -in1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.flavin - a ketone that forms the nucleus of certain natural yellow pigments like riboflavin
ketone - any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals
hepatoflavin, lactoflavin, ovoflavin, riboflavin, vitamin B2, vitamin G - a B vitamin that prevents skin lesions and weight loss


[ˈfleɪvɪn] Nflavina f
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Flavin tells us that the diagonal signified a rupture: "In the spring of 1963," he writes, "I felt sufficiently founded in my new work to discontinue it.
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Louis Skyline Trade Show Consultant, Michael Flavin, has scheduled four (4) educational online webinars for Trade Show Marketers in the Saint Louis, Missouri area, during the months of October & November, 2011.