electroencephalogram

noun

elec·​tro·​en·​ceph·​a·​lo·​gram i-ˌlek-trō-in-ˈse-f(ə-)lə-ˌgram How to pronounce electroencephalogram (audio)
: the tracing of brain waves made by an electroencephalograph

Examples of electroencephalogram in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The machine would use a pen to physically scribble waves with peaks and troughs onto paper scrolling at a rate of 1 centimeter per second to create an electroencephalogram (EEG). Yasemin Saplakoglu, Quanta Magazine, 17 Oct. 2025 To reach its conclusion, the team collected electroencephalogram (EEG) data, which measures the brain's electrical activity, from 30 participants who took part in a simulated driving experience. Stacey Leasca, Travel + Leisure, 14 Oct. 2025 How the brain test works The noninvasive test is an electroencephalogram, or EEG, which involves placing small electrodes on the scalp to record electrical activity in the brain. Kristen Rogers, CNN Money, 12 Oct. 2025 Zohny said it could possibly be used to help measure consciousness from brain signals, such as with an electroencephalogram, or EEG, a test that measures electrical activity in the brain. Cara Anthony, Miami Herald, 13 Sep. 2025 See All Example Sentences for electroencephalogram

Word History

Etymology

International Scientific Vocabulary

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of electroencephalogram was in 1934

Browse Nearby Words

Cite this Entry

“Electroencephalogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electroencephalogram. Accessed 31 Oct. 2025.

Kids Definition

electroencephalogram

noun
elec·​tro·​en·​ceph·​a·​lo·​gram i-ˌlek-trō-en-ˈsef-ə-lə-ˌgram How to pronounce electroencephalogram (audio)
: the tracing of brain waves that is made by an electroencephalograph

Medical Definition

electroencephalogram

noun
elec·​tro·​en·​ceph·​a·​lo·​gram -in-ˈsef-ə-lə-ˌgram How to pronounce electroencephalogram (audio)
: the tracing of brain waves made by an electroencephalograph

More from Merriam-Webster on electroencephalogram

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!