Find the word definition

The Collaborative International Dictionary
vitamin B

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

Syn: B-complex vitamin, B complex, vitamin B complex, B vitamin.

Wiktionary
vitamin b

n. (context vitamin English) Any member of the vitamin B complex.

WordNet
vitamin B

n. originally thought to be a single vitamin but now separated into several B vitamins [syn: B-complex vitamin, B complex, vitamin B complex, B vitamin, B]