1. (n.)Micronesia one of the threeprincipal divisions of Oceania, comprising the smallPacific islands N of the equator and E of the Philippines, whose main groups are the Mariana Islands, the Caroline Islands, and the Marshall Islands.
2. Micronesia Federated States of, a group of islands in the W Pacific, in the Caroline Islands, comprising the islands of Pohnpei, Truk, Yap, and Kosrae: formerly a part of the TrustTerritory of the Pacific Islands; now a self-governing area associated with the U.S. 131,500; 271 sq. mi. (701 sq. km).
2. (noun)Micronesia the islands in the northwestern part of Oceania
Definition of 'micronesia'
U.S. National Library of Medicine
1. micronesia The collectivename for islands of the PacificOceaneast of the Philippines, including the Mariana, PALAU, Caroline, Marshall, and Kiribati Islands. Micronesia is from the Greek micro, small + nesos, island, so named because the islands in this group are much smaller than those in MELANESIA. Micronesia is inhabited by a mixed race of Melanesians, Polynesians, and some Malaysians. (From Webster's New Geographical Dictionary, 1988, p761 & Room, Brewer's Dictionary of Names, 1992, p350)
Definitions of micronesia 
