ailmentary system 《英文msh词典》Ailmentary System ; [入口词] Ailmentary System ; [主题词] Digestive System ; [英文释义] A group of organs stretching from the MOUTH to the ANUS,serving to breakdown foods,assimilate nutrients,and eliminate waste. In humans,the disgestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS).