A written recording of the electrical activity of the brain. Electroencephalograms are useful in studying and detecting brain disorders.
electroencephalogram e·lec·tro·en·ceph·a·lo·gram (ĭ-lěk'trō-ěn-sěf'ə-lə-grām')
n.
Abbr. EEG A graphic record of brain waves as recorded by an electroencephalograph.