The Pacific Rim is the area on the western shores of the Pacific Ocean, including Japan, China, Korea, Thailand, and Malaysia.
...the growing need for energy which is now emerging in Asia and the Pacific Rim.
...the economies of Pacific Rim countries.
Pacific rim in British English
noun
the regions, countries, etc, that lie on the shores of the Pacific Ocean, esp in the context of their developing manufacturing capacity and consumer markets
Pacific Rim in American English
1.
the coastal regions bordering the Pacific Ocean
2.
the countries of these regions, esp. with respect to their trade relations, political alliances, etc. with each other