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• flavin
  flavin

  noun

  a complex heterocyclic ketone that is common to the nonprotein part of several important yellow enzymes, the flavoproteins.
• -flavin
  -flavin

  a combining form occurring in compound words which denote natural derivatives of flavin.

flavin

¹ American  

[fley-vin] / ˈfleɪ vɪn /

noun

Biochemistry.

1. a complex heterocyclic ketone that is common to the nonprotein part of several important yellow enzymes, the flavoproteins.

2. quercetin.

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-flavin ² American  

1. a combining form occurring in compound words which denote natural derivatives of flavin.

   riboflavin.

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flavin British  

/ ˈfleɪvɪn /

noun

1. a heterocyclic ketone that forms the nucleus of certain natural yellow pigments, such as riboflavin. Formula: C 10 H 6 N 4 O 2 See flavoprotein

2. any yellow pigment based on flavin

3. another name for quercetin

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Etymology

Origin of flavin

First recorded in 1850–55; flav- + -in ²

Example Sentences

Complex IV contains a molecule of flavin mononucleotide and iron-sulfur clusters.

From Textbooks • Jun. 9, 2022

In phototropins, the chromophore is a covalently-bound molecule of flavin; hence, phototropins belong to a class of proteins called flavoproteins.

From Textbooks • Jun. 9, 2022

Immediately after the FAD absorbs a blue photon, an electron from the nearest tryptophan hops onto the flavin portion of the FAD.

From Scientific American • Mar. 15, 2022

Add 6 oz. fustic or 1 oz. flavin to cutch bath, re-enter cotton.

From Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer by Mairet, Ethel M.

Remove yarn, enter flavin, madder and tin, take off the boil, enter yarn and stir well.

From Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer by Mairet, Ethel M.