环磷酰胺 Traditional form: 環磷酰胺 Pinyin (reading): huánlínxiān'àn Definitions: cyclophosphamide (medication) Characters: 环 - bracelet, ring; to surround, to loop 磷 - phosphorus 酰 - acylate 胺 - amine Traditional characters: 環 - bracelet, ring; to surround, to loop 磷 - phosphorus 酰 - acylate 胺 - amine