brain wave

noun

Definition of brain wave 

2a : rhythmic fluctuations of voltage between parts of the brain resulting in the flow of an electric current

b : a current produced by brain waves

Examples of brain wave in a Sentence

Recent Examples on the Web

There are things out there that try to blind people with complicated words, like a particular app that claims to improve your focus by playing specific music that gets your brain waves working in a particular way. Angela Chen, The Verge, "What happens when you spend a year using science to improve your brain," 22 Aug. 2018 Your brain wave activity is most similar to its daytime state during REM sleep than in any other phase. Nina Bahadur, SELF, "When Should You See a Doctor About Nightmares?," 3 Aug. 2018 In the 1980s, Benjamin Libet wired people up to a system that recorded their brain waves. Daniel Glaser, A-LIST, "Out of Your Mind," 1 July 2018 If brain waves are measured at the same time, particular signals in the reading indicate with certainty whether the participants heard their own voice. Steve Ayan, Scientific American, "10 Things You Don’t Know About Yourself," 15 May 2018 Bartschi’s music delightfully hints at a bygone era and is full of motion, like the whirring of focused brain waves. Matthew J. Palm, OrlandoSentinel.com, "Entertaining Sherlock Holmes musical doesn't always hit the right emotional notes," 9 June 2018 Sleep tests performed in a lab use advanced electrodes and sensors to measure more than a dozen different metrics in addition to breathing, such as brain waves, leg and eye movement, and oxygen levels. Sarah Gantz, Philly.com, "The high cost of getting a good night's sleep," 6 June 2018 In a similar vein, Dreem, a $500 ergonomic headband, works with electroencephalography sensors to monitor brain waves, heart rate, and breathing during sleep. Lindsey Tramuta, Fortune, "How Sleep Became The Ultimate Luxury," 31 May 2018 From no brain waves to now walking and talking and reading, doing math. Caitlin O'kane, CBS News, "Boy regains consciousness after parents sign papers to donate his organs," 6 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brain wave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of brain wave

1890, in the meaning defined at sense 1

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Last Updated

15 Nov 2018

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Time Traveler for brain wave

The first known use of brain wave was in 1890

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More Definitions for brain wave

brain wave

noun

English Language Learners Definition of brain wave

: a pattern or cycle of electrical activity in the brain

brain wave

noun

Medical Definition of brain wave 

1 : rhythmic fluctuations of voltage between parts of the brain resulting in the flow of an electric current

2 : a current produced by brain waves — compare alpha wave, beta wave

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