Definition of psychodiagnostic in US English:

psychodiagnostic

adjective

Psychology
  • Of or relating to psychodiagnosis.

Origin

Early 20th century. From psycho- + diagnostic. Compare German psychodiagnostisch. With the noun compare earlier psychodiagnostics and the foreign-language forms cited at that entry.

Pronunciation

psychodiagnostic

/ˌsʌɪkəʊdʌɪəɡˈnɒstɪk/