(anatomy, psychology) The most primitive part of the brain; the brain stem. / (by extension) Any part of a person's psyche or personality dominated by instinct or impulse rather than rational thought.

(informal) A sensation akin to an electric shock in the brain, associated with the discontinuation of treatment with antidepressants.

plural of brain zap

A forensic technique that uses electroencephalography to determine whether specific information is stored in a subject's brain.

(anatomy, psychology) The primitive part of the human brain that mirrors that of reptiles, controlling instinctive behavior.

plural of dur-brain

plural of brain surgery

plural of addle-brain

plural of bird brain

plural of brain-pan