[pol-ee-fey-jee-uh, -juh]
Noun
1. Refers to excessive hunger or increased appetite.(wikipedia.org)
2. (Zoology) The eating of many different types of food.
Syn: Hyperphagia
Word origin: Medical Latin, from Greek polyphagia “excess in eating,” from polyphagos “eating to excess,” from polys “much” + phagein “to eat.”