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niacin

American  
[nahy-uh-sin] / ˈnaɪ ə sɪn /

noun

Biochemistry.
  1. nicotinic acid.


niacin British  
/ ˈnaɪəsɪn /

noun

  1. another name for nicotinic acid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

niacin Scientific  
/ nīə-sĭn /
  1. A water-soluble organic acid belonging to the vitamin B complex that is important in carbohydrate metabolism. It is a pyridine derivative and is a precursor of the coenzyme NAD. Niacin is found in liver, fish, and whole-grain foods. Deficiency of niacin in the diet causes pellagra. Also called nicotinic acid. Chemical formula: C 6 H 5 NO 2 .


Etymology

Origin of niacin

First recorded in 1935–40; ni(cotinic) ac(id) + -in 2

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Flour is already fortified with calcium, niacin, thiamine and iron as a means of improving public health.

From BBC • Nov. 14, 2024

"The main takeaway is not that we should cut out our entire intake of niacin -- that's not a realistic approach," said Dr. Hazen.

From Science Daily • Feb. 19, 2024

It’s a diet that’s low in niacin, or at least the kind that our bodies can readily absorb.

From Scientific American • Oct. 26, 2023

I have been taking niacin for years along with vitamin C and the amino acids lysine and proline.

From Seattle Times • Jun. 14, 2023

The way to unlock the niacin in corn is to cook it with an alkali like lime.

From "The Omnivore's Dilemma" by Michael Pollan