Definition of Vitamin b3
1. Noun. niacin ¹
¹ Source: wiktionary.com
Medical Definition of Vitamin b3
1.
Member of the water soluble B vitamin group, used in the production of fatty acids, steroids and cholesterol, deficiency is known as pellagra. Has cholesterol-lowering and vasodilating properties.
(27 Sep 1997)
Lexicographical Neighbors of Vitamin B3
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