psychosis
UK /saɪˈkəʊsɪs/ · US /saɪˈkoʊsɪs/ noun
Forms psychoses
- noun (psychology) A severe mental disorder, sometimes with physical damage to the brain, marked by a deranged personality and a distorted view of reality.
Etymology
From psych- + -osis. Not descended from Ancient Greek ψύχωσις (psúkhōsis, “animation, principle of life”), which is a piecewise cognate.
Webster’s 1913
- noun Any vital action or activity. Mivart.
- noun A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.
Etymology [NL. See Psycho-.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “psychosis”, CC BY-SA 4.0. Details