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Term Definition
Guayana A phytogeographic region corresponding to the Guayana Shield and including the Guianas and parts of northern Amazonian Brazil, Amazonian Colombia, and Amazonian Venezuela. Guayana should not to be confused with Guyana, the country, or the Guianas, a political term that encompasses Guyana, Suriname, and French Guiana.
Guayana Shield A geographic region in northern South America corresponding with Precambrian bedrock.