Pronunciation: (in"du-nē'zhun, -shun, -zē-un, -dō-),[key] —n. 1. a member of the ethnic group consisting of the natives of Indonesia, the Filipinos, and the Malays of Malaysia.
2. a member of a population supposed to have been resident in the Malay Archipelago before the Malays, and believed to constitute one element of the present mixed population of Malaysia and perhaps Polynesia.
3. Official name, Bahasa Indonesia. an Indonesian language that is based on the form of Malay spoken in Java and has the status of official language in the Republic of Indonesia.
4. the westernmost branch of the Austronesian family of languages, including Malay, Indonesian, Tagalog, and Malagasy.
—adj. 1. of or pertaining to the Malay Archipelago.
2. of or pertaining to Indonesia, the Indonesians, or their languages.