a chronic or persistent disorder of the mental processes caused by brain disease or injury and marked by memory disorders, personality changes, and impaired reasoning.
Loss of cognitive abilities, including memory, concentration, communication, planning and thinking, as a result of a brain injury or a disease such as heart disease Alzheimer's or Parkinson's disease. Sometimes it is accompanied by emotional disturbances and personality changes.
[Latin > adj.
( dɪmɛnʃə; -ʃɪə )
(Pathology) a state of serious emotional and mental deterioration, of organic or functional origin
[C19: from Latin: madness;
(dɪˈmɛn ʃə, -ʃi ə)
of • menthia
(dɪmɛn ʃə, -ʃi ə) n n n.
memory capacity and reasoning badly damaged, usu. With altered behavior, associated with damaged brain tissue.