囊胚 Traditional form: 囊胚 Pinyin (reading): nángpēi Definitions: (zoology) blastula (mammology) blastocyst Characters: 囊 - bag, purse, sack; to pocket, to stow 胚 - embryo; an unfinished thing Traditional characters: 囊 - bag, purse, sack; to pocket, to stow 胚 - embryo; an unfinished thing