siouan Meaning, Definition & Usage

1. noun a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains
   Sioux.
   
2. noun a family of North American Indian languages spoken by the Sioux
   Siouan language.
   
3. adjective of or relating to the Sioux people or their language and culture
   

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