psychosis

/saɪˈkoʊsɪs/
noun
  1. A severe mental disorder in which a person loses contact with reality, often experiencing hallucinations or delusions.
    • Schizophrenia is one type of psychosis that affects how a person thinks and feels.
    • Early treatment can help manage the symptoms of psychosis.
    • The patient was hospitalized after experiencing a brief episode of psychosis.