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n. pl. Santee or San·tees
A member of the eastern branch of the Sioux, comprising the Mdewakanton, Sisseton-Wahpeton, and Wahpekute peoples, with present-day populations in Nebraska, Minnesota, the Dakotas, and Canada. Also called Dakota, Eastern Sioux, Santee Dakota, Santee Sioux.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.