UNCUS By N., Sam M.S. - 1 noun. a hook-shaped portion of the rhinal sulcus of the hippocampal formation housed in the rhinencephalonoun. The lateral olaspecty tract is linked to the uncus. UNCUS: "The uncus is severely deformed in the second autopsy." Related Psychology Terms Crisis Diagnosis and Intervention A Comparison of Maternal and Paternal Filicide Dissociative Identity Disorder EMOTION (Theories) CEREBRAL CORTEX TUFTED CELL TURBINATE RHINAL FISSURE MULTIPLE THERAPY MENTAL RETARDATION (CAUSES) Cite this page: N., Sam M.S., "UNCUS," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/uncus/ (accessed July 4, 2022).