Definition of riboflavin noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌraɪbəˈfleɪvɪn//
; NAmE NAmE//ˌraɪbəˈfleɪvɪn//
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a vitamin which is important for producing energy, found in milk, liver, eggs and green vegetables Word Origin 1930s: from ribose + Latin flavus ‘yellow’ + -in.
See the Oxford Advanced American Dictionary entry: riboflavin