mizuna Syllabification: (mi·zu·na)Pronunciation: /məˈzo͞onə/ (also mizuna greens)Definition of mizuna noun an oriental rape of a variety with finely cut leaves that are eaten as a salad vegetable. Brassica rapa variety nipposinica, family Brassicaceae Origin: 1990s: from Japanesemizuna in other Oxford dictionaries Definition of mizuna in the British & World English dictionary