We found 30 dictionaries that define the word vitamins:

General (10 matching dictionaries)

1. vitamins: Merriam-Webster
2. vitamins: Collins English Dictionary
3. vitamins: Vocabulary.com
4. Vitamins, vitamin's, vitamins: Wordnik
5. vitamins: Cambridge Advanced Learner's Dictionary
6. vitamins: Wiktionary
7. vitamins: Dictionary.com
8. vitamins: Cambridge Essential American English Dictionary
9. Vitamins (short story), Vitamins: Wikipedia, the Free Encyclopedia
10. Vitamins: TheFreeDictionary.com

Art (1 matching dictionary)

11. Vitamins: Health & Beauty Glossary

Computing (1 matching dictionary)

12. Vitamins: Encyclopedia

Medicine (10 matching dictionaries)

13. vitamins: Merriam-Webster Medical Dictionary
14. Vitamins: MedTerms.com Medical Dictionary
15. Medical Dictionary (No longer online)
16. Johnson Bwby (No longer online)
17. online medical dictionary (No longer online)
18. Vitamins: MEDLINE plus Illustrated Medical Encyclopedia
19. Vitamins: Medical dictionary
20. University of Maryland Glossary of Medical Terms (No longer online)
21. Vitamins: Drug Medical Dictionary
22. Hyperdictionary (No longer online)

Miscellaneous (2 matching dictionaries)

23. Brilliant Dream Dictionary (No longer online)
24. vitamins: The Skeptic's Dictionary

Slang (2 matching dictionaries)

25. vitamins: Green’s Dictionary of Slang
26. vitamins: Urban Dictionary

Sports (1 matching dictionary)

27. Vitamins: Body Building

Tech (3 matching dictionaries)

28. Dairy Glossary (No longer online)
29. Vitamins: Beauty & Health Glossary
30. Washington State Definitions and Abbreviations of Vetrinary Terms (No longer online)

(Note: See vitamin as well.)

Definitions from Wikipedia (Vitamins) ▸ noun:  "Vitamins" is a short story by American author Raymond Carver. ▸ noun:  the third studio album by Irish anti-folk band Music for Dead Birds. Opposite: toxins, poisons, contaminants, pollutants, carcinogens Types: A, B, C, D, E, K, biotin, folic acid, niacin, pantothenic acid, more... Phrases: B vitamins, fat soluble vitamins, water soluble vitamins, fat-soluble vitamins, water-soluble vitamins, more... Adjectives: soluble, other, complex, certain, essential, fat, various, several, more, prenatal, important ▸ Words similar to vitamins ▸ Usage examples for vitamins ▸ Idioms related to vitamins ▸ Wikipedia articles (New!) ▸ Popular adjectives describing vitamins ▸ Words that often appear near vitamins ▸ Rhymes of vitamins ▸ Invented words related to vitamins