riboflavin

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

Definition of riboflavin

  1. :  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

Recent Examples of riboflavin from the Web

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

play
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

\-ˌvēn\play

Medical Definition of riboflavin

  1. :  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


Seen and Heard

What made you want to look up riboflavin? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to be a fixed element or attribute

Get Word of the Day daily email!

Test Your Vocabulary

July 2017 Words of the Day Quiz

  • alt-597a99e699d07
  • Which is a synonym of gauche?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!