brain wave


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

Each episode investigates eerie future-is-now realms of A.I.: autonomous weapons, medical diagnostics, smart robots, brain waves flying a simulated plane. Sarah Larson, The New Yorker, "Three Podcasts to Listen to in July," 9 July 2019 Next comes REM sleep, characterized by quick brain waves and dreams. Bridget Alex, Discover Magazine, "How Our Sleeping Habits Helped to Make Us Human," 1 Jan. 2019 Scientists have proposed numerous possible roles for brain waves. Simon Makin, Scientific American, "“Traveling” Brain Waves May Be Critical for Cognition," 28 June 2018 Their analysis of the sleepers’ brain waves found that those who slept with the white noise machine were hardly disturbed by the hospital sounds, while sleep arousals were frequent among those who slept without white noise. Markham Heid, Time, "Why Not Everyone Should Sleep with a White Noise Machine," 4 June 2019 The interface activates when visitors press their foreheads against the EEG sensor, which detects brain waves and converts these signals into commands that the on-screen HUD simulation follows. Larry Greenemeier, Scientific American, "Marvel Comics Gets Inside the Heads of the Avengers," 21 Aug. 2014 This is part of an omega brain wave reading, determining if my brain has recovered enough of its electrical energy to handle the day’s exercise. Joe Pappalardo, Popular Mechanics, "What Happened When I Trained With Air Force Human Performance Specialists," 12 Feb. 2019 Then, the researchers trained an AI to study the brain wave patterns and deduce what words the patients were listening to. Avery Thompson, Popular Mechanics, "Scientists Translate Brain Waves Into Speech," 30 Jan. 2019 Glancing down to catch a baby’s eye while reading a story, meeting a child’s inquiring gaze—these simple acts bring the child’s brain waves into greater synchronization with the adult’s, according to recent research at Cambridge University. Meghan Cox Gurdon, WSJ, "The Secret Power of the Children’s Picture Book," 18 Jan. 2019

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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Statistics for brain wave

Last Updated

12 Jul 2019

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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


English Language Learners Definition of brain wave

: a pattern or cycle of electrical activity in the brain

brain wave


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

More from Merriam-Webster on brain wave

Rhyming Dictionary: Words that rhyme with brain wave Encyclopedia article about brain wave

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