A religious ceremony widely practiced among Native American peoples of the Great Plains, typically marked by several days of fasting and group dancing and sometimes including ritual self-torture, as in penance or to induce a trance or vision.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.