organic brain syndrome n.
Any of a group of acute or chronic syndromes involving temporary or permanent impairment of brain function caused by trauma, infection, toxin, tumor, or tissue sclerosis, and causing mild-to-severe impairment of memory, orientation, judgment, intellectual functions, and emotional adjustment. Also called organic mental syndrome.
|organic brain syndrome|
|mental abnormality resulting from disturbance of the structure or function of the brain|