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riboflavin

noun
/ˌraɪbəˈfleɪvɪn/
/ˌraɪbəˈfleɪvɪn/
[uncountable]
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  1. a vitamin which is important for producing energy, found in milk, liver, eggs and green vegetables核黄素;维生素 B2
    Word Origin1930s: from ribose + Latin flavus ‘yellow’ + -in.

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