We found 8 dictionaries that define the word B vitamins:

General (5 matching dictionaries)

1. B vitamins: Merriam-Webster
2. B vitamins: Collins English Dictionary
3. B vitamins: Vocabulary.com
4. B-Vitamins, B-vitamins: Wordnik
5. B Vitamins, B-vitamins, B vitamins: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

6. B vitamins: Encyclopedia

Medicine (2 matching dictionaries)

7. B-vitamins, B vitamins, B vitamins: Medical dictionary

(Note: See b_vitamin as well.)

Definitions from Wikipedia (B vitamins) ▸ noun:  a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. ▸ Words similar to B vitamins ▸ Usage examples for B vitamins ▸ Idioms related to B vitamins ▸ Wikipedia articles (New!) ▸ Words that often appear near B vitamins ▸ Rhymes of B vitamins ▸ Invented words related to B vitamins