Definition of Micronesia in US English:


proper noun

  • 1A region of the western Pacific Ocean, north of Melanesia and north and west of Polynesia. It includes the Mariana, Caroline, and Marshall island groups and Kiribati.

  • 2A country in the western Pacific Ocean, north of the equator, composed of hundreds of islands in the Caroline Islands group; population 104,000 (estimated 2015); capital, Palikir; languages, English (official) and Austronesian languages.

    The group was administered by the US as part of the Pacific Islands Trust Territory from 1947 and entered into free association with the US as an independent state in 1986


From Greek mikros ‘small’ + nēsos ‘island’.