[ dee-ree-uh-luh-zey-shuh n ]
/ diˌri ə ləˈzeɪ ʃən /
an alteration in perception leading to the feeling that the reality of the world has been changed or lost.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for derealization
[ dē-rē′ə-lĭ-zā′shən ]
The feeling that things in one's surroundings are strange, unreal, or somehow altered, as seen in schizophrenia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.