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1. The animistic religion of certain peoples of northern Asia in which mediation between the visible and spirit worlds is effected by shamans.
2. A similar religion or set of beliefs, especially among certain Native American peoples.
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.