[ law-rey-zhuh, -shuh ]
/ lɔˈreɪ ʒə, -ʃə /
a hypothetical landmass in the Northern Hemisphere near the end of the Paleozoic Era: split apart to form North America and Eurasia.
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Words nearby Laurasia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for Laurasia
/ (lɔːˈreɪʃə) /
Word Origin for Laurasia
C20: from New Latin Laur (entia) (referring to the ancient N American landmass, from Laurentian strata of the Canadian Shield) + (Eur) asia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Laurasia
[ lô-rā′zhə ]
A supercontinent of the Northern Hemisphere made up of the landmasses that currently correspond to North America, Greenland, Europe, and Asia (except India). According to the theory of plate tectonics, Laurasia separated from Pangaea at the end of the Paleozoic Era and broke up into the current continents in the middle of the Mesozoic Era. Compare Gondwanaland.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.