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Canadian Shield

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noun Geology.
the extensive region making up much of northern and central Canada underlain by Precambrian rocks that have been eroded to produce a low shieldlike profile.
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Also called Laurentian Plateau .

Origin of Canadian Shield

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Canadian Shield in a sentence

British Dictionary definitions for Canadian Shield

Canadian Shield

noun
Also called: Laurentian Shield, Laurentian Plateau (in Canada) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic: rich in mineralsSee shield (def. 7)
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
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