Definition of paraphrenia in US English:

paraphrenia

noun

Psychology
  • In early use: insanity, madness Later: specifically mental illness with prominent paranoid or other delusional symptoms; paranoid schizophrenia.

Origin

Mid 19th century; earliest use found in British and Foreign Medico-chirurgical Review. From para- + ancient Greek ϕρήν phren + -ia, after French paraphrénie.

Pronunciation

paraphrenia

/ˌparəˈfriːnɪə/