[dee-ree-iz-uh m, dey-rey-]
Origin of dereism
< Latin dē rē, literally, away from the matter + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Mental activity that is absorbed in fantasy, lacking any connection to the external world or reality.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.