flavin
noun
fla·vin ˈflā-vən 
: any of a class of yellow water-soluble nitrogenous pigments derived from isoalloxazine and occurring in the form of nucleotides as coenzymes of flavoproteins
especially : riboflavin
Word History
Etymology
International Scientific Vocabulary, from Latin flavus yellow — more at blue
First Known Use
1933, in the meaning defined above
Phrases Containing flavin
Medical Definition
flavin
noun
fla·vin ˈflā-vən
: any of a class of yellow water-soluble nitrogenous pigments derived from isoalloxazine and occurring in the form of nucleotides as coenzymes of flavoproteins
especially : riboflavin