We found 36 dictionaries with English definitions that include the word niacin:
Click on the first link on a line below to go directly to a page where "niacin" is defined.
 General (17 matching dictionaries)
- niacin: Compact Oxford English Dictionary [home, info]
- niacin: American Heritage Dictionary of the English Language [home, info]
- niacin: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
- Niacin: Wiktionary [home, info]
- niacin: Webster's New World College Dictionary, 4th Ed. [home, info]
- niacin: The Wordsmyth English Dictionary-Thesaurus [home, info]
- niacin: Dictionary.com [home, info]
- niacin: Online Etymology Dictionary [home, info]
- niacin: UltraLingua English Dictionary [home, info]
- Niacin (band), Niacin: Wikipedia, the Free Encyclopedia [home, info]
- niacin: Rhymezone [home, info]
- niacin: Columbia Encyclopedia, Sixth Edition [home, info]
- niacin: Free Dictionary [home, info]
- niacin: Mnemonic Dictionary [home, info]
- niacin: WordNet 1.7 Vocabulary Helper [home, info]
- niacin: LookWAYup Translating Dictionary/Thesaurus [home, info]
- niacin: Dictionary/thesaurus [home, info]
Art (1 matching dictionary)
- Niacin: Health & Beauty Glossary [home, info]
Computing (1 matching dictionary)
- niacin: Encyclopedia [home, info]
Medicine (14 matching dictionaries)
- niacin: Dorland's Illustrated Medical Dictionary [home, info]
- Niacin: MedTerms.com Medical Dictionary [home, info]
- Niacin: Medical Dictionary [home, info]
- niacin: Johnson Bwby [home, info]
- Niacin (nicotinic acid): Merck Manuals [home, info]
- niacin: online medical dictionary [home, info]
- Niacin: Hepatitis C Information Central [home, info]
- Niacin: MEDLINE plus Illustrated Medical Encyclopedia [home, info]
- niacin: MT DESK Medical/Drugs/Surgical Terms [home, info]
- niacin: Dictionary of Cancer Terms [home, info]
- niacin: Medical dictionary [home, info]
- Niacin: University of Maryland Glossary of Medical Terms [home, info]
- niacin: Vitamin Glossary [home, info]
- Niacin: Drug Medical Dictionary [home, info]
Science (1 matching dictionary)
- Niacin: Biological Sciences Dictionary [home, info]
Sports (1 matching dictionary)
- Niacin, Niacin, Niacin: Body Building [home, info]
Tech (1 matching dictionary)
- Niacin: Beauty & Health Glossary [home, info]
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Quick definitions (niacin)
▸ noun: a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract
▸ Word origin
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