derealization

Meanings

1. The psychological symptom in which the world appears to be unreal, and the patient has a sense of detachment from it.
2. making unreal, in general; detachment from reality or realness.
3. The loosening of the bonds of (an electron) so that it can move freely among a group of atoms; delocalization.

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- Proto-Indo-European *(H)reh₁-der. Proto-Indo-European *(H)reh₁ís Proto-Italic *reis Late Latin rēs Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Late Latin -ālis Late Latin reālisder. Old French reelbor. Middle English real English real Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English -ization ▲ English de- ▲ English real ▲ English -ize English derealize ▲ English -ation English derealization From de- + real + -ization, or from derealize + -ation.