vitamin B vi·ta·minb uncommon noun 1. originally thought to be a single vitamin but now separated into several B vitamins SynonymsB-complex vitaminB complexvitamin B complexvitamin BB vitaminB Related words Word family vitamin B1vitamin B12vitamin B2vitamin B6vitamin Bcvitamin B complex Broader terms water-soluble vitamin Narrower terms cholineinositolpantothenic acidvitamin B1vitamin B12vitamin B2vitamin B6vitamin Bc WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
