A volcano with a crater roughly 8 km (5 miles) long by 5 km (3 miles) broad on the island of Hawaii, situated on the eastern flanks of Mauna Loa at an altitude of 1,247 m (4,090 ft).
Definition of Kilauea in US English:
Kilauea
proper nounˌkēˌlouˈāə
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).