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dereism

[dee-ree-iz-uh m, dey-rey-]
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noun Psychology.
  1. autism.

Origin of dereism

< Latin dē rē, literally, away from the matter + -ism
Related formsde·re·is·tic, adjectivede·re·is·ti·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
dereism in Medicine

dereism

(dē-rē′ĭz′əm, dē′rē-)
n.
  1. Mental activity that is absorbed in fantasy, lacking any connection to the external world or reality.
Related formsde′re•is′tic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.