electroencephalograph

American  

[ih-lek-troh-en-sef-uh-luh-graf, -grahf] / ɪˌlɛk troʊ ɛnˈsɛf ə ləˌgræf, -ˌgrɑf /

noun

Medicine/Medical.

1. an instrument for measuring and recording the electric activity of the brain.

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electroencephalograph British  

/ -ˌɡræf, ɪˌlɛktrəʊɛnˈsɛfələˌɡrɑːf, ɪˌlɛktrəʊɛnˌsɛfəˈlɒɡrəfɪ /

noun

1.  EEG.  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, etc See also brain wave

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Other Word Forms

• electroencephalographic adjective
• electroencephalographical adjective
• electroencephalographically adverb
• electroencephalography noun

Etymology

Origin of electroencephalograph

First recorded in 1935–40; electro- + encephalograph

Example Sentences

Researchers from France, Germany and South Korea learned this by studying 14 chinstrap penguins sleep patterns with an electroencephalograph, which measures brain activity.

From Salon • Dec. 4, 2023

The head and the heart are wired: electroencephalograph to scalp; electrocardiograph to body.

From The New Yorker • Jan. 27, 2014

In 2007 the duo built a body-heat powered electroencephalograph device that monitored brain activity.

From Forbes • Jun. 8, 2010

Hooked up to an electroencephalograph, their patient listened to music with one ear, with the other, and then with both.

From Time Magazine Archive

A peculiar mixture of radio and the electroencephalograph, I think.

From The Women-Stealers of Thrayx by Holden, Fox B.