Nantoka/二尖瓣èr jiān bàn二尖瓣 (èr jiān bàn) is a Chinese word meaning “mitral valve (physiology)”.Meanings1mitral valve (physiology)Characters in 二尖瓣二èr · two尖jiān · pointed; tapering; sharp瓣bàn · petalRelated words第二second二two尖叫to screech; to shriek二十twenty; 20十二twelve尖pointed; tapering; sharp周二Tuesday独一无二(idiom) unique; unmatched; unrivalled老二second-eldest child in a family星期二Tuesday顶尖peak二级grade 2Study Chinese with flashcards →