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Definition of vitamin B noun from the Oxford Advanced Learner's Dictionary

vitamin B

noun
 
/ˌvɪtəmɪn ˈbiː/
 
/ˌvaɪtəmɪn ˈbiː/
[uncountable]
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  1. any one of a group of vitamins found in foods such as grains, meat and fish that are essential for the blood and the nervous system, and for processing the food we eat
trait
noun
 
 
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B2
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