Precambrian shield

noun

Definition of Precambrian shield

: the nuclear area of Precambrian rocks present in each of the continents

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Cite this Entry

“Precambrian shield.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Precambrian%20shield. Accessed 22 Jan. 2021.

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