
1) Dissociative disorder
Found on
https://www.crosswordclues.com/clue/derealization

Derealization or derealisation (sometimes abbreviated as DR) is an alteration in the perception or experience of the external world so that it seems unreal. Other symptoms include feeling as though one`s environment is lacking in spontaneity, emotional coloring and depth. It is a dissociative symptom of many conditions, such as psychiatric and ne....
Found on
http://en.wikipedia.org/wiki/Derealization

(from the article `mental disorder`) ...unreal, strange, altered in quality, or distant. This state of self-estrangement may take the form of feeling as if one is machinelike, is living ...
Found on
http://www.britannica.com/eb/a-z/d/33

An alteration in one's perception of the environment such that things that are ordinarily familiar seem strange, unreal, or two-dimensional. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

(de-re″әl-ĭ-za´shәn) loss of sensation of the reality of one's surroundings; the feeling that something has happened, that the world has been changed and altered, that one is detached from one's environment. It is seen most frequently in schizophrenia. See also depersonalization.
Found on
http://www.encyclo.co.uk/local/21001

An alteration in the perception or experience of the external world so that it seems strange or unre
Found on
http://www.encyclo.co.uk/local/22394

Type: Term Pronunciation: dē-rē′ă-li-zā′shŭn Definitions: 1. An alteration in one's perception of the environment such that things that are ordinarily familiar seem strange, unreal, or two-dimensional.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=23862

an alteration in perception leading to the feeling that the reality of the world has been changed or lost.
Found on
https://www.infoplease.com/dictionary/derealization
No exact match found.