ˈflāvə̇n also -lav- noun
or fla·vine “, -ˌvēn
( -s )
Etymology: International Scientific Vocabulary flav- + -in, -ine
1. : a yellow dye obtained by extracting quercitron bark — see dye table I (under Natural Yellow 10 )
2. : any of the yellow acridine dyes used in medicine for their antiseptic properties ; especially : acriflavine
3. : 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