pol·y·pha·gi·a 
(pŏl′ē-fājē-ə, -jə) or po·lyph·a·gy (pə-lĭfə-jē)
(pŏl′ē-fājē-ə, -jə) or po·lyph·a·gy (pə-lĭfə-jē)n.
1. An excessive or pathological desire to eat.
2. Zoology The habit of feeding on many different kinds of food.
pol′y·phagi·an adj.