Hawai'i Volca'noes Na'tional Park'
a large national park that includes the active volcanoes Kilauea and Mauna Loa on the island of Hawaii and the extinct crater Haleakala on Maui. 343 sq. mi. (890 sq. km).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.