Webster's Revised Unabridged Dictionary · 1913

vitamin B

vitamin B , noun

a group of water-soluble vitamins originally thought to be a single vitamin but now separated into several B vitamins.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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