a group of volcanic islands in the Pacific, off the SE coast of New Guinea: part of Papua New Guinea. Pop: 49 167 (1990 est). Area: 3141 sq km (1213 sq miles)
D'Entrecasteaux Islands in American English
(ˌdɑntrəˈkæstoʊ)
group of islands off SE New Guinea: part of the country of Papua New Guinea: c. 1,200 sq mi (3,108 sq km)