Kilauea Syllabification: (Ki·lau·ea)Pronunciation: /ˌkiləˈwāə, ˌkēˌlouˈāə/Definition of Kilauea an active volcano with a crater roughly 5 miles (8 km) long and 3 miles (5 km) wide on the island of Hawaii, situated on the eastern flank of Mauna Loa at an altitude of 4,090 feet (1,247 m). Kilauea in other Oxford dictionaries Definition of Kilauea in the British & World English dictionary