IPA: /ˈpɒlɪfədʒi/
KK: /pɑˈlɪfədʒi/
The ability of an animal to eat many different types of food.
Some animals, like bears, are known for their polyphagy, consuming both plants and meat.
Polyphagy → It is formed from "poly-" (from Greek "polus", meaning many) and "phagy" (from Greek "phagein", meaning to eat). The word describes the act of eating many different kinds of food.
Think of 'many' ('poly-') types of food that one can 'eat' ('phagy') — that's what polyphagy means.