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riboflavin

American  
[rahy-boh-fley-vin, rahy-boh-fley-, -buh-] / ˌraɪ boʊˈfleɪ vɪn, ˈraɪ boʊˌfleɪ-, -bə- /
Also riboflavine

noun

Biochemistry.
  1. a vitamin B complex factor appearing as an orange-yellow, crystalline compound, C 1 7 H 2 0 N 4 O 6 , derived from ribose, essential for growth, found in milk, fresh meat, eggs, leafy vegetables, etc., or made synthetically, and used in enriching flour, in vitamin preparations, and in treating facial lesions.


riboflavin British  
/ ˌraɪbəʊˈfleɪvɪn /

noun

  1. Also: vitamin B2.   lactoflavin.  a yellow water-soluble vitamin of the B complex that occurs in green vegetables, germinating seeds, and in milk, fish, egg yolk, liver, and kidney. It is essential for the carbohydrate metabolism of cells. It is used as a permitted food colour, yellow or orange-yellow ( E101 ). Formula: C 17 H 20 N 4 O 6

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

riboflavin Scientific  
/ rībō-flā′vĭn /
  1. A water-soluble compound belonging to the vitamin B complex that is important in carbohydrate metabolism and the maintenance of mucous membranes. Riboflavin is found in milk, leafy vegetables, meat, and egg yolks. Also called vitamin B 2 . Chemical formula: C 17 H 20 N 4 O 6 .


Etymology

Origin of riboflavin

First recorded in 1930–35; ribo(se) + flavin

Vocabulary lists containing riboflavin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Oreos, Cheetos, and Taki's all contain ingredients I cannot identify, like Niacin, Thiamine Mononitrate, and Riboflavin.

From Salon • Feb. 17, 2024

If I did, I would not have even been able to pronounce the Thiamine Mononitrate, Riboflavin, Folic Acid, and Carrageenan that the famous cake company uses.

From Salon • Feb. 17, 2024

Riboflavin, in turn, is believed to be vitally mixed up with the absorption of light by both plants and animals.

From Time Magazine Archive