Schizophrenia

Noun

1. A psychiatric diagnosis denoting a persistent, often chronic, mental illness characterised by abnormal perception, thinking, behavior and emotion, often marked by delusions. .mw-parser-output .defdate{font-size:smaller}
2. A condition in which a person is supposed to have several distinct personalities; dissociative identity disorder.
3. Any condition in which disparate or mutually exclusive activities coexist; a lack of decision between options.