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

Time Traveler
The first known use of organic brain syndrome was in 1966

Dictionary Entries Near organic brain syndrome

Cite this Entry

“Organic brain syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/organic%20brain%20syndrome. Accessed 31 Jan. 2023.

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY