insectivorous Syllabification: (in·sec·tiv·o·rous)Pronunciation: /ˌinˌsekˈtivərəs/Definition of insectivorous adjective (of an animal) feeding on insects, worms, and other invertebrates. (of a plant such as the Venus flytrap) able to capture and digest insects. insectivorous in other Oxford dictionaries Definition of insectivorous in the British & World English dictionary