a U.S. trust territory in the Pacific Ocean, comprising the Mariana, Marshall, and Caroline Islands: approved by the United Nations 1947; since 1976 constituents of the trusteeship have established or moved toward self-government. 717 sq. mi. (1857 sq. km).
British Dictionary definitions for pacific islands
a former Trust Territory; an island group in the W Pacific Ocean, mandated to Japan after World War I and assigned to the US by the United Nations in 1947: comprised 2141 islands (96 inhabited) of the Caroline, Marshall, and Mariana groups (excluding Guam). In 1978 the Northern Marianas became a commonwealth in union with the US. The three remaining entities consisting of the Marshall Islands, the Republic of Palau (or Belau), and the Federated States of Micronesia became self-governing during the period 1979–80. In 1982 they signed agreements of free association with the US. Land area: about 1800 sq km (700 sq miles), scattered over about 7 500 000 sq km (3 000 000 sq miles) of ocean
Consisting of the Caroline Islands, the Marshall Islands, and the Marianas Islands, covering a vast area of the Pacific Ocean, including more than two thousand islands and islets. Held by the United States under United Nations trusteeship.