Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: ribose type of sugar (19-21 centuries) (from arabinose type of sugar (19-21 centuries), from gum arabic type of natural substance) + Latin flavus 'yellow'

riboflavin

noun
     
Related topics: Nutrition, Chemistry
ri‧bo‧fla‧vin [uncountable] technical
DFN vitamin B2, a substance that exists in meat, milk, and some vegetables, and that is important for your health

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary