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Definition of niacin

niacin

/ˈnaɪ.ə.sɪn/
ni · a · cin
Plural:niacins
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niacin Lexical Profile

niacin Game Scores & Validity

• noun

1

A water-soluble B-complex vitamin (vitamin B3), chemically known as nicotinic acid, that is essential for human cellular metabolism, nervous system function, and the prevention of pellagra.

Example

"Whole grains, lean meats, and legumes are excellent dietary sources of niacin."

Synonyms
View all synonyms for niacin

• Rhymes for niacin

• Nearby Words

ngaruroro
ngoko
ngoko river
niacin
niagara
niagara falls
niagara river

Word Origin & Etymology

Coined in the early 1940s as an acronymic blend of nicotinic acid vitamin to avoid public confusion with the toxic alkaloid nicotine found in tobacco.

Cite this Entry

Wordmom. (2026). Definition of Niacin. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/niacin
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