"electroencephalographer". Acronym. A word composed of three others: electro- (electricity or electrical), encephalon (set of organs that are part of the vertebrate nervous system and are contained in the inner cavity of the skull) and -graphist (person who makes graphs, diagrams or diagrams). 1 . Medicine. Person specialized in "electroencephalography". Electroencephalography is the part of medicine that studies the collection and interpretation of electroencephalograms. According to RAE .