WordReference Random House Unabridged Dictionary of American English © 2026
psy•cho•pa•thol•o•gy
(sī′kō pə thol′ə jē),USA pronunciation n.
psy•cho•path•o•log•i•cal
(sī′kō path′ə loj′i kəl),USA pronunciation psy′cho•path′o•log′ic, adj.
psy′cho•pa•thol′o•gist, n.
- Psychiatrythe science or study of mental disorders.
- Psychiatrythe conditions and processes of a mental disorder.
- Psychiatrya pathological deviation from normal or efficient behavior; psychosis.
- psycho- + pathology 1840–50
'psychopathological' also found in these entries (note: many are not synonyms or translations):