Definitions for riboflavinˌraɪ boʊˈfleɪ vɪn, ˈraɪ boʊˌfleɪ-, -bə-
Random House Webster's College Dictionary
ri•bo•fla•vinˌraɪ boʊˈfleɪ vɪn, ˈraɪ boʊˌfleɪ-, -bə-(n.)
a vitamin B complex factor essential for growth, occurring as a yellow crystalline compound, C17H20N4O6, abundant in milk, meat, eggs, and leafy vegetables and produced synthetically.
Ref: Also called vitamin B2. 2
Origin of riboflavin:
< G (1935); see ribo -, flavin
vitamin B2, vitamin G, riboflavin, lactoflavin, ovoflavin, hepatoflavin(noun)
a B vitamin that prevents skin lesions and weight loss
Yellow or orange-yellow water-soluble compound, a member of the vitamin B complex, that acts as a growth-promoting factor in humans and other animals.
U.S. National Library of Medicine
Nutritional factor found in milk, eggs, malted barley, liver, kidney, heart, and leafy vegetables. The richest natural source is yeast. It occurs in the free form only in the retina of the eye, in whey, and in urine; its principal forms in tissues and cells are as FLAVIN MONONUCLEOTIDE and FLAVIN-ADENINE DINUCLEOTIDE.