noun🔗ShareElectroencefalógrafo, EEGAn instrument used for recording of electrical brain activity."The doctor used an electroencephalograph to monitor the patient's brain waves during the sleep study. "El médico usó un electroencefalógrafo para controlar las ondas cerebrales del paciente durante el estudio del sueño.medicinetechnologydevicephysiologyelectronicsmachineanatomyorganbodyChat with AIVocabulary GamePractice Reading