electroencephalogram

American  

[ih-lek-troh-en-sef-uh-luh-gram] / ɪˌlɛk troʊ ɛnˈsɛf ə ləˌgræm /

noun

Medicine/Medical.

1. a graphic record produced by an electroencephalograph. EEG

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electroencephalogram British  

/ ɪˌlɛktrəʊɛnˈsɛfələˌɡræm /

noun

1.  EEG.  med the tracing obtained from an electroencephalograph

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electroencephalogram Scientific  

/ ĭ-lĕk′trō-ĕn-sĕf′ə-lə-grăm′ /

1. A graphic record of brain waves representing electrical activity in the brain, used especially in the diagnosis of seizures and other neurological disorders.

2. ◆ The instrument used to record an electroencephalogram is called an electroencephalograph. It generates a record of the electrical activity of the brain by measuring electric signals using a set of electrodes attached to the scalp that act as transducers. Differences of electric potential between different parts of the brain are measured by a portable set of galvanometers and printed as a wide paper strip with multiple simultaneous waveform tracings that have standard configurations in the normal brain.

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electroencephalogram Cultural  

1. A written recording of the electrical activity of the brain. Electroencephalograms are useful in studying and detecting brain disorders.

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Etymology

Origin of electroencephalogram

First recorded in 1930–35; electro- + encephalogram