Home/niacinniacin/nahy-uh-sin/US // ˈnaɪ ə sɪn //UK // (ˈnaɪəsɪn) //烟酸,烟碱酸,烟酰胺,烟碱液Definitionsn.名词 noun1 Biochemistry.: nicotinic acid. Level 3Browse all words →