芥菜籽 Traditional form: 芥菜籽 Pinyin (reading): jiècàizǐ Definitions: mustard seed Characters: 芥 - mustard, broccoli 菜 - vegetables; order, dish; food 籽 - seed, pit, pip Traditional characters: 芥 - mustard, broccoli 菜 - vegetables; order, dish; food 籽 - seed, pit, pip