riboflavin
noun
ri·bo·fla·vin
ˌrī-bə-ˈflā-vən 
ˈrī-bə-ˌflā-
: 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
Examples of riboflavin in a Sentence
Recent Examples on the Web
These include calcium, vitamins D (when fortified) and B12, niacin, phosphorus, riboflavin, pantothenic acid.
—
Maxine Lipner, Verywell Health, 10 Jan. 2025
Maple syrup has a higher concentration of nutrients such as potassium, calcium, riboflavin, and zinc.
—Lauren O'Connor, Ms, Health, 6 Jan. 2025
Messer adds that many varieties of instant ramen also provide micronutrients like thiamine and riboflavin, which can be good for immune health, digestive health, and skin health.
—Daryl Austin, USA TODAY, 2 Jan. 2025
Maple syrup is a significant source of riboflavin and manganese and contains detectable amounts of calcium and vitamin K.
—Lauren O'Connor, Ms, Health, 18 Dec. 2024
See all Example Sentences for riboflavin 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Maxine Lipner, Verywell Health, 10 Jan. 2025
Maple syrup has a higher concentration of nutrients such as potassium, calcium, riboflavin, and zinc.
—Lauren O'Connor, Ms, Health, 6 Jan. 2025
Messer adds that many varieties of instant ramen also provide micronutrients like thiamine and riboflavin, which can be good for immune health, digestive health, and skin health.
—Daryl Austin, USA TODAY, 2 Jan. 2025
Maple syrup is a significant source of riboflavin and manganese and contains detectable amounts of calcium and vitamin K.
—Lauren O'Connor, Ms, Health, 18 Dec. 2024
See all Example Sentences for riboflavin
Dictionary Entries Near riboflavin
Cite this Entry
“Riboflavin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/riboflavin. Accessed 10 Feb. 2025.
Copy CitationKids Definition
riboflavin
noun
ri·bo·fla·vin
ˌrī-bə-ˈflā-vən
: a vitamin of the vitamin B complex that helps growth and is found both free (as in milk) and combined with other substances (as in liver)
called also vitamin B2
Medical Definition
riboflavin
noun
ri·bo·fla·vin
ˌrī-bə-ˈflā-vən, ˈrī-bə-ˌ
variants
also riboflavine
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share