Laurasia Definition
lô-rāzhə
noun
The supercontinent of the Northern Hemisphere that, according to the theory of plate tectonics, broke up into North America, Greenland, Europe, and Asia except for the Indian subcontinent.
American Heritage
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Origin of Laurasia
New Latin Laur(entia) geologic precursor of North America (after the Saint Lawrence River) (Eur)asia
From American Heritage Dictionary of the English Language, 5th Edition
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