noun
western hemisphere; the Occident
Geographical term for the half of the Earth west of the prime meridian; also used historically for the Western world, especially the Americas and Europe.
See also: 東半球
西半球には南北アメリカ大陸が含まれる。
The western hemisphere includes the continents of North and South America.
この植物は西半球に広く分布している。
This plant is widely distributed in the western hemisphere.