the second largest island of the Philippines, in the S part of the archipelago: mountainous and volcanic. Chief towns: Davao, Zamboanga. Pop: 13 626 338 (2000). Area: (including offshore islands) 94 631 sq km (36 537 sq miles)
Mindanao in American English
(ˌmɪndəˈnaʊ; ˌmɪndəˈnɑoʊ)
2d largest island of the Philippines, at the S end of the group: 36,537 sq mi (94,630 sq km)