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brain wave

 - 4 dictionary results

brain wave

–noun
1. Usually, brain waves. Medicine/Medical. electrical potentials or impulses given off by brain tissue. Compare alpha rhythm, beta rhythm, delta rhythm.
2. Informal. a sudden idea or inspiration; brainstorm.

Origin:
1865–70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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brain wave  
n.  
  1. A rhythmic fluctuation of electric potential between parts of the brain, as seen on an electroencephalogram.

  2. Informal A sudden inspiration.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: brain wave
Function: noun
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
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

brain wave n.
A rhythmic fluctuation of electric potential between parts of the brain, as seen on an electroencephalogram.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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