riboflavin

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noun ri·bo·fla·vin \ ˌrī-bə-ˈflā-vən , ˈrī-bə-ˌ \

Definition of riboflavin

:a yellow crystalline compound C₁₇H₂₀N₄O₆ of the vitamin B complex that occurs both free (as in milk) and combined (as in liver) as a component of coenzymes (such as FMN) which are essential to normal metabolism — called also vitamin B₂

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Recent Examples of riboflavin from the Web

Read more: Often thought of as a nutrition lightweight, mushrooms supply some key nutrients, including niacin and riboflavin.

— darlene zimmerman, Detroit Free Press, "Mushroom, Onion and Parmesan Tartlets," 15 July 2017
While the amount of fat in your milk may vary, know that all cow’s milk contains the same nine essential nutrients: Calcium, protein, vitamin D, phosphorus, vitamin A, riboflavin, vitamin B-12, magnesium, potassium, and niacin.

— kathy r. byrnes, Cincinnati.com, "1%, whole, fat free – What’s the milk difference?," 3 June 2017
All our Sadness Lamps are assembled by technicians who are totally considered older than eighteen in most countries, and are provided with a complete vending-machine diet, rich in riboflavin, as well as an endless supply of blinding white light.

— sarah hutto, The New Yorker, "Sadness Lamp F.A.Q.," 13 Mar. 2017
Caterpillars are a fantastic source of iron, thiamin, and riboflavin.

— erin biba, WIRED, "We Can Save the World by Eating Bugs and Drinking Urine," 23 Aug. 2012

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'riboflavin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of riboflavin

International Scientific Vocabulary ribo- + Latin flavus yellow — more at blue

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First Known Use: 1935

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RIBOFLAVIN Defined for English Language Learners

riboflavin

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noun

Definition of riboflavin for English Language Learners

: a natural substance (called a vitamin) that is found in certain foods (such as milk, eggs, and leafy vegetables) and that helps your body to be healthy

Medical Dictionary

riboflavin

play

noun ri·bo·fla·vin \ ˌrī-bə-ˈflā-vən, ˈrī-bə-ˌ \

variants: also riboflavine play \-ˌvēn\

medical Definition of riboflavin

:a yellow crystalline compound C₁₇H₂₀N₄O₆ that is a growth-promoting member of the vitamin B complex and occurs both free (as in milk) and combined (as in liver) — called also lactoflavin, ovoflavin, vitamin B₂

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riboflavin

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RIBOFLAVIN Defined for English Language Learners

riboflavin

Definition of riboflavin for English Language Learners

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riboflavin

medical Definition of riboflavin

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riboflavin

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