transuranic element: any element having an atomic number greater than 92 (which is the atomic number of uranium); all are radioactive
chemical element: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
gastroenterostomy: surgical creation of an opening between the stomach wall and the small intestines; performed when the normal opening has been eliminated