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Sangamon

[ sang-guh-muhn ]
/ ˈsæŋ gə mən /
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noun Geology.
the third interglacial stage of the Pleistocene Epoch in North America, after the Illinoian glacial stage and before the Wisconsin.
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Origin of Sangamon

First recorded in 1930–35; after Sangamon County, Ill.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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