/ear"ee ahn' jah"yah/
the W part of the island of New Guinea, formerly a Dutch territory: a province of Indonesia since 1963. 957,000; ab. 159,000 sq. mi. (411,810 sq. km). Cap.: Jayapura. Formerly, Irian Barat /bahr"aht/ , West Irian, Netherlands New Guinea, Dutch New Guinea .