organic brain syndrome

noun

: an acute or chronic mental dysfunction (such as Alzheimer's disease) resulting chiefly from physical changes in brain structure and characterized especially by impaired cognition

Word History

First Known Use

1966, in the meaning defined above

Medical Definition

organic brain syndrome

noun

: any acute or chronic mental dysfunction (as delirium or senile dementia) resulting chiefly from physical changes in brain structure and characterized especially by impaired cognition

called also organic brain disorder, organic mental syndrome