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fla·vin(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.
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]
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]
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|Noun||1.||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