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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
From the M-W Editors
Recent Examples of riboflavin from the Web
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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.
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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.
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Caterpillars are a fantastic source of iron, thiamin, and riboflavin.
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
RIBOFLAVIN Defined for English Language Learners
riboflavin
playDefinition of riboflavin for English Language Learners
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: 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
playMedical 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
Learn More about riboflavin
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See words that rhyme with riboflavin Britannica.com: Encyclopedia article about riboflavin
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