烟碱 yānjiǎn nicotine Definitions Defs Origin Strokes Stroke Words Sentences Sents 烟碱素 yānjiǎnsù niacin (Taiwan) niacin; vitamin B3烟碱酸 yānjiǎnsuān niacin niacin; vitamin B3; nicotinic acid烟碱醯胺 yānjiǎnxī'àn nicotinamide nicotinamide (niacinamide) [Taiwan]