Oceania. [ oh-shee- an-ee- uh, - ah-nee- uh ] show ipa. noun. the islands of the central and southern Pacific, including Micronesia, Melanesia, Polynesia, and traditionally Australasia. About 3,450,000 sq. mi. (8,935,500 sq. km). Australasia and Oceania: Let's delve into the specifics. Oceania is a vast region consisting of four different parts: Australasia, Melanesia, Micronesia, and Polynesia. Today, we will focus primarily on Australasia. Australasia: Australasia comprises only a portion of the larger Oceania continent. As proper nouns the difference between oceania and australia is that oceania is a geographical region composed of many islands (Melanesia, Micronesia, and Polynesia) plus Australasia. It is located between Asia, Antarctica and the Americas while Australia is a country in Oceania. The Hawaiian Islands and even Antarctica have been included under the heading "Australasia," but more often the region is treated as coterminous with Oceania. This article was most recently revised and updated by Michael Ray . Most of Oceania, including Australia, is under the Pacific, a vast body of water that is larger than all Earth's continental landmasses and islands combined. The name "Oceania" justly establishes the Pacific Ocean as the defining characteristic of the region. Oceania is dominated by the nation of Australia. Updated on April 23, 2018. Oceania is the name of the region consisting of island groups within the Central and South Pacific Ocean. It spans over 3.3 million square miles (8.5 million sq km). Some of the countries included in Oceania are Australia, New Zealand, Tuvalu, Samoa, Tonga, Papua New Guinea, the Solomon Islands, Vanuatu, Fiji, Palau .

difference between australia and oceania