an instrument for measuring and recording the electric activity of the brain.
Origin of electroencephalograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an instrument for recording the electrical activity of the brain, usually by means of electrodes placed on the scalp: used to diagnose tumours of the brain, to study brain waves, etcAbbreviation: EEG See also brain wave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
An instrument that generates a record of the electrical activity of the brain by measuring electric potentials using electrodes attached to the scalp.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.