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nicotinic acid Syllabification: nic·o·tin·ic ac·id
Pronunciation: /ˌnikəˈtinik/ /-ˈtēnik/

Definition of nicotinic acid in English:


A vitamin of the B complex that is widely distributed in foods such as milk, wheat germ, and meat, and can be synthesized in the body from tryptophan. Its deficiency causes pellagra.
Example sentences
  • Thus, the enzymes nicotinic acid mononucleotide adenylyltransferase and NAD synthetase are essential for growth of E. coli (coded for by the genes nadD and nadE, respectively).
  • Blood levels of pantothenic acid were significantly higher in CD patients, and there were no statistically significant differences in levels of vitamins B12 and C, nicotinic acid, and biotin.
  • Because of its ability to cause large reductions in circulating levels of cholesterol, nicotinic acid is used to treat Type II, III, IV and V hyperlipoproteinemias.



Pronunciation: /-ˈtēˌnāt/
Example sentences
  • Adenylation of nicotinate mononucleotide to nicotinate adenine dinucleotide is the penultimate step in NAD + synthesis.
  • After 6-12 hours, tissues retained on the average 2-4 times more chromium nicotinate than chromium picolinate.
  • There has been no demonstration of any toxicity so far in the clinical observations of the authors with the use of chromium nicotinate at levels as high as 5000 mcg/day.

Definition of nicotinic acid in:

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