胚囊 Traditional form: 胚囊 Pinyin (reading): pēináng Definitions: (botany) embryo sac Characters: 胚 - embryo; an unfinished thing 囊 - bag, purse, sack; to pocket, to stow Traditional characters: 胚 - embryo; an unfinished thing 囊 - bag, purse, sack; to pocket, to stow