さいしん 菜心 LinksSentence search for 菜心Sentence search for さいしんSentence search for サイシンKanji details for 菜 and 心Edit in JMdict Noun1. choy sum (Brassica rapa var. parachinensis); choi sum; Chinese flowering cabbageUsually written using kana aloneOther formsサイシン Discussions Log in to talk about this word.