Western-hemisphere definition

wĕstərn
The half of the earth west of the Prime Meridian. The Western Hemisphere is often defined more narrowly as including just North America, Central America, and South America.
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(place) That half of the earth which includes North & South America.
proper name
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The half of the Earth that includes North America, Central America, and South America, as divided roughly by the 0° and 180° meridians.
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Alternative spelling of Western Hemisphere.
noun
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