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riboflavin Line breaks: ribo|fla¦vin
Pronunciation: /ˌrʌɪbə(ʊ)ˈfleɪvɪn/

Definition of riboflavin in English:


[mass noun] Biochemistry
A yellow vitamin of the B complex which is essential for metabolic energy production. It is present in many foods, especially milk, liver, eggs, and green vegetables, and is also synthesized by the intestinal flora. Also called vitamin B2.
Example sentences
  • Vitamin B2, or riboflavin (in green vegetables, liver, wheat germ, eggs and cheese), alleviates eye fatigue by helping to regulate blood flow to the cornea.
  • Mushrooms also contain B-complex vitamins, such as riboflavin, niacin, folate and pantothenic acid, not easily found in produce.
  • Whole grains are also important sources of vitamins and minerals, such as thiamin, riboflavin, niacin, folate, selenium, zinc and iron.


1930s: from ribose + Latin flavus 'yellow' + -in1.

Definition of riboflavin in:
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