/ˈämnəˌvôr/
Noun, pl. omnivore
1. An animal which is able to consume both plants (like a herbivore) and meat (like a carnivore). (wiktionary.org)
2. A polyphage (“many foods”) species that is a consumer of a variety of material as significant food sources in their natural diet. These foods may include plants, animals, algae and fungi. Omnivores often are opportunistic, general feeders with neither carnivore nor herbivore specializations for acquiring or processing food, and are capable of consuming and do consume both animal protein and vegetation. Many omnivores depend on a suitable mix of animal and plant food for long-term good health and reproduction. (wikipedia.org)
Word origin: From Latin omni + vorare “all, everything”, “to devour”