Plains Indian

noun

a member of any of the American Indian tribes, as those of the Algonquian, Athabascan, Caddoan, Kiowa, Siouan, or Uto-Aztecan linguistic families, that formerly inhabited the Great Plains. All were more or less nomadic, following the buffalo, and were often in touch with one another so that the development among them of common culture traits is noticeable.

Also called Buffalo Indian.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for buffalo indian

Plains Indian

noun

a member of any of the North American Indian peoples formerly living in the Great Plains of the US and Canada

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012