a yellow crystalline B vitamin, CHNO, found in milk, eggs, liver, kidney, fruits, leafy vegetables, yeast, etc.; vitamin B: its deficiency in the diet causes stunted growth, loss of hair, etc.
also sp. ri′bo·fla·vine
Origin of riboflavinribo(se) + flavin
An orange-yellow crystalline compound, C17H20N4O6, the principal growth-promoting factor in the vitamin B complex, naturally occurring in milk, leafy vegetables, fresh meat, and egg yolks. Also called lactoflavin, vitamin B2.
Origin of riboflavinribo(se) + flavin.