flavin

¹

[ fley-vin ]

noun

, Biochemistry.

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

-flavin

²

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

   riboflavin.

flavin

/ 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

Word History and Origins

Origin of flavin¹

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

Word History and Origins

Origin of flavin¹

C19: from Latin flāvus yellow

Example Sentences

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

A chemical in skin called flavin absorbs blue light.

From New York Times

When microbes such as L. monocytogenes live in a host gut, they are immersed in nutrients, including flavin molecules, and Light et al. show that the presence of flavins potently enhances EET activity.

From Nature

For example, red cabbages contain an indicator pigment molecule called flavin, which is a type of molecule called an anthocyanin.

From Scientific American

Open — wrapping up at that very moment in nearby Queens — a “lava multi flavin” striped dress appeared, looking perfect for use on Center Court, Jacobs said in his notes.

From Washington Post