单词	nicotinic acid
释义	nicotinic acid noun : niacin Example Sentences Recent Examples on the Web Niacinamide, which is also called nicotinamide, is one of two major forms of vitamin B3 (niacin) found in supplements (the other is nicotinic acid). A.a. Newton, SELF, 8 May 2019 Word History First Known Use 1873, in the meaning defined above Medical Definition nicotinic acid noun : niacin
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