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[dee-ree-iz-uh m, dey-rey-] /diˈri ɪz əm, deɪˈreɪ-/
noun, Psychology.
Origin of dereism
< Latin dē rē, literally, away from the matter + -ism
Related forms
dereistic, adjective
dereistically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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dereistic in Medicine

dereism de·re·ism (dē-rē'ĭz'əm, dē'rē-)
Mental activity that is absorbed in fantasy, lacking any connection to the external world or reality.

de're·is'tic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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