brain waves

brain waves
the fluctuations of electrical potential in the brain, as recorded by electroencephalography. See alpha, beta, delta, and theta w's.

Brain waves characteristic of a normal electroencephalogram.


Medical dictionary. 2011.

Look at other dictionaries:

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  • brain wave — n 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 …   Medical dictionary

  • brain wave — brain′ wave n. 1) phl Usu., brain waves. electrical potentials or impulses given off by brain tissue Compare alpha rhythm beta rhythm delta rhythm 2) brainstorm 1) • Etymology: 1865–70 …   From formal English to slang

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  • brain wave — noun (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph • Syn: ↑brainwave, ↑cortical potential • Topics: ↑neurophysiology • Hypernyms: ↑bioelect …   Useful english dictionary

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  • brain — I (New American Roget s College Thesaurus) n. cerebrum, cerebellum; mentality, intellect, intelligence, mind; gray matter. v. t. See killing. II (Roget s IV) n. 1. [The organ of intelligence] Syn. pons, cerebrum, cerebellum, medulla oblongata;… …   English dictionary for students

  • brain wave — noun Date: 1890 1. brainstorm 2a 2. a. rhythmic fluctuations of voltage between parts of the brain resulting in the flow of an electric current b. a current produced by brain waves …   New Collegiate Dictionary

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