Similar words: maniac, brainiac, demoniac, maniacally, insomniac, egomaniac, pyromaniac, megalomaniac. Meaning: ['naɪəsɪn] 
n. a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract.
n. a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract. 
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31 The meat and meat alternatives – which include poultry, fish, dry beans, eggs and nuts – are rich sources of protein, phosphorus, vitamins B6 and B12, zinc, magnesium, iron, niacin and thiamin.
32 This experiment was conducted to compare the effects of dietary niacin levels on digestive capability and immune function of juvenile Jian carp(cyprinus carpio var.
33 Object : To prepare niacin sustained - release tablets and investigate in vitro release profile of the formulation.
34 However, the effect of long - term exposure to excess niacin on human health remains to be unclear.
35 House: The carrots turn you yellow, the niacin turns you red.
36 Dietary niacin and niacin formed within the body from the amino acid tryptophan are converted to niacinamide.
More similar words: maniac, brainiac, demoniac, maniacally, insomniac, egomaniac, pyromaniac, megalomaniac, bracing, tracing, hyacinth, menacing, racing car, menacingly, self-effacing, celiac, zodiac, immediacy, diachronic, aphrodisiac, hypochondriac, xenia, mania, menial, denial, genial, zinnia, venial, cinch, cine.