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any of a group of water-soluble yellow pigments widely distributed in animals and plants, including riboflavin and yellow enzymes.
flavin adenine dinucleotide (FAD) a coenzyme that is a condensation product of riboflavin phosphate and adenylic acid; it forms the prosthetic group (non–amino acid component) of certain enzymes, including d-amino acid oxidase and xanthine oxidase, and is important in electron transport in mitochondria.
flavin mononucleotide (FMN) a derivative of riboflavin consisting of a three-ring system (isoalloxazine) attached to an alcohol (ribitol); it acts as a coenzyme for a number of oxidative enzymes, including l-amino acid oxidase and cytochrome C reductase.


, flavine (flā'vin, -vēn, flav'in, -ēn),
1. Synonym(s): riboflavin
2. A yellow acridine dye, preparations of which are used as antiseptics.
[L. flavus, yellow]


(flā′vĭn) also


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.


A heat-stable factor of the vitamin B complex with isoalloxazine nucleotides that are coenzymes of the flavohydrogenases.
Synonym(s): flavin, flavine, riboflavine.


One of a range of water soluble yellow pigments that includes the vitamin RIBOFLAVIN. Flavins occur in the tissues as coenzymes of FLAVOPROTEINS.
References in periodicals archive ?
Given his ever applauded irreligion, we might not want to declare Flavin's Icons the art-historical source of all this.
Nevertheless, to take Flavin, thanks to his questionably serious early Icons, as alpha and omega of even electrified and colorized iconic abstraction, would lock out an already overlooked, faithful Greek Orthodox older contemporary of Flavin and friend of mine, a maker of decidedly icon-informed square relief paintings with built-in neon who has just died.
But it is Antonakos's square monochrome reliefs, similar to Flavin's in size, with neon light leaching out from underneath, which compare with Flavin's Icons.
(1.) Corinna Thierolf and Johannes Vogt, Dan Flavin: Icons, trans.
Riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in human plasma and erythrocytes at baseline and after low-dose riboflavin supplementation.
In the same way, Flavin's works continue to look like light fittings, but the artist has changed their substance--into art (but only, of course, when they are switched on: it is the light that is the art).
In the case of Flavin, among the questions is, what happens when the light tubes--as eventually happens to all physical things-wear out?
Evidently, Flavin himself intended the works--originally at least--to be thrown away.
Flavin began by taking as his visual repertoire the nine colours and five shapes--one circular, and four of differing lengths--in which neon was produced.